- N. Böwering, R. Sauerbrey, and H. Langhoff:
 "Kinetic studies of Ar2F* in electron-beam
    excited Ar-NF3 mixtures"
 J. Chem. Phys. 76, 3524-3528 (1982).
- N. Böwering, Chien-Yu Kuo, T.D. Raymond, and
    J.W. Keto:
 "Spectral Line Shapes from Two Photon Excitation of Xenon"
 in: Spectral Line Shapes Vol. II, (de Gruyter, Berlin, New
    York, 1983) p. 927-943.
- T.D. Raymond, N. Böwering, Chien-Yu Kuo, and
    J.W. Keto:
 "Two-photon laser spectroscopy of xenon collision pairs"
 Phys. Rev. A 29, 721-734 (1984).
- N. Böwering, T.D. Raymond, and J.W. Keto:
 "Enhanced quenching at reduced internuclear separations of xenon
    collision pairs"
 Phys. Rev. Lett. 52, 1880-1883 (1984).
- N. Böwering and J.W. Keto:
 "Selective quenching during half-collisions of laser excited xenon
    atoms"
 in: Proc. Int. Conf. on Lasers '84, W.C. Stwalley (editor)
    (STS Press, Washington, 1985).
- N. Böwering, M.R. Bruce, and J.W. Keto:
 "Collisional deactivation of two-photon laser excited
    xenon 5p56p. I. State-to-state reaction rates"
 J. Chem. Phys. 84, 709-714 (1986).
- N. Böwering, M.R. Bruce, and J.W. Keto:
 "Collisional deactivation of two-photon laser excited xenon
    5p56p. II. Lifetimes and total quench rates"
 J. Chem. Phys. 84, 715-726 (1986).
- J.W. Keto and N. Böwering:
 "Observation of curve crossings in radiative collisions of xenon
    atoms"
 in: Advances in Laser Science I, American Institute of
    Physics, Conf. Proc. No. 146,
 W.C. Stwalley and M. Lapp (editors) (New York, 1986). p.
    513-516.
- J.W. Keto and N. Böwering:
 "Observation of curve crossings in optical collisions of xenon
    atoms"
 in: Spectral Line Shapes, Vol. 4, R. J. Exton (editor) (A.
    Deepak Publishing, Hampton, Virginia, 1987) p. 235-249.
- M. Müller, F. Schäfers, N. Böwering,
    Ch. Heckenkamp, and U. Heinzmann:
 "Spin-Polarization Measurements in the Autoionization Region of
    Mercury"
 Physica Scripta 35, 459-462 (1987).
- T. Huth, A. Mank, N. Böwering, G.
    Schönhense, R. Wallenstein, and U. Heinzmann:
 "Photoelectron emission from HI using narrow-band, polarized,
    coherent VUV- radiation"
 in: Electronic and atomic collisions, H.B. Gilbody, W.R.
    Newell, F.H. Read, A.C.H. Smith (editors), (Elsevier Science,
    London, 1988) p. 607-612.
- A. Svensson, M. Müller, N. Böwering, U.
    Heinzmann, V. Radojevic, and W. Wijesundera:
 "Angle- and Spin-resolved photoelectron spectroscopy of the 4f
    subshell in atomic ytterbium"
 J. Phys. B: At. Mol. Opt. Phys. 21, L179-L185 (1988).
- N. Böwering, T. Huth, A. Mank, M. Müller,
    G. Schönhense, R. Wallenstein, and U. Heinzmann:
 "Photoelectron Spectroscopy of HI and Photoemission Following
    Narrowband VUV Excitation"
 in: Electron-Molecule Scattering and Photoionisation,
    Physics of Atoms and Molecules, P.G. Burke and J.B. West (editors),
    (Plenum Press, New York, London, 1988) p. 139-146.
- G. Fecher, M. Volkmer, B. Pawlitzky, N.
    Böwering and U. Heinzmann:
 "Sticking probability of oriented NO at Ni(100)"
 J. Chem. Soc. Faraday Trans. II 85, 1364-1367 (1989).
- A. Mank, M. Drescher, T. Huth-Fehre, G.
    Schönhense, N. Böwering and U. Heinzmann:
 "Angular distribution of photoelectrons ejected from HI by
    polarized coherent vuv radiation"
 J. Phys. B: At. Mol. Opt. Phys. 21, L487-L491 (1989).
- H. Lefebvre-Brion, M. Salzmann, H.-W. Klausing, M.
    Müller, N. Böwering and U. Heinzmann:
 "Influence of autoionisation and predissociation on the
    photoelectron parameters in HBr"
 J. Phys. B: At. Mol. Opt. Phys. 22, 3891-3900 (1989).
- M. Müller, N. Böwering, F. Schäfers
    and U. Heinzmann:
 "Spin-Resolved Photoionisation of Lead Above the
    Pb+(6s26p) 2P3/2 -
    Threshold"
 Physica Scripta 41, 38-41 (1990).
- M. Müller, N. Böwering, F. Schäfers
    and U. Heinzmann:
 "Photoelectron Spin-Polarisation Spectroscopy in the
    5s5p2-Autoionisation Region of Indium"
 Physica Scripta 41, 42-46 (1990).
- T. Huth-Fehre, A. Mank, M. Drescher, N.
    Böwering and U. Heinzmann:
 "Rotationally Resolved Fano Effect of HI Molecules, An Experimental
    Study Using Coherent VUV Radiation"
 Phys. Rev. Lett. 64, 396-399 (1990).
- T. Huth-Fehre, A. Mank, M. Drescher, N.
    Böwering and U. Heinzmann:
 "A Laser-Based Coherent VUV Source and its Application to Highly
    Resolved Studies of the Fano Effect in HI"
 Physica Scripta 41, 454-457 (1990).
- N. Böwering, M. Salzmann, M. Müller, H.-W.
    Klausing and U. Heinzmann:
 "Photoelectron Spin Polarization approaching Unity: Photoionization
    of Tl"
 Physica Scripta 41, 429-432 (1990).
- G. H. Fecher, N. Böwering, M. Volkmer, B.
    Pawlitzky and U. Heinzmann:
 "Dependence of the sticking probability on initial molecular
    orientation: NO on Ni(100)"
 Surface Science Letters 230, L169-L172 (1990).
- G.H. Fecher, M. Volkmer, B. Pawlitzky, N.
    Böwering and U. Heinzmann:
 "Orientation Dependence of the Sticking Probability of NO at
    Ni(100)"
 Vacuum 41, 265-268 (1990).
- A. Mank, M. Drescher, T. Huth-Fehre, G.
    Schönhense, N. Böwering and U. Heinzmann:
 "Photoelectron Dynamics of HI ionized by Coherent VUV
    Radiation"
 J. Electron Spectroscopy and Related Phenomena 52, 661-670
    (1990).
- M. Müller, N. Böwering, A. Svensson and U.
    Heinzmann:
 "Angle- and Spin-Resolved Photoelectron Spectroscopy in the Region
    of the 6s6p²-Autoionisation of Tl"
 J. Phys. B: At. Mol. Opt. Phys. 23, 2267-2275 (1990).
- C. Kerling, N. Böwering and U. Heinzmann:
 "Photoelectron angular distributions from laser-excited aligned
    Yb-atoms ionised by vacuum ultraviolet radiation"
 J. Phys. B: At. Mol. Opt. Phys. 23, L629-L635 (1990).
- N. Böwering, T. Döhring, U. Gärner
    and U. Heinzmann:
 "Spectral diagnosis of a laser-produced XUV-source using a digital
    camera system with pinhole-transmission grating"
 Laser Part. Beams 9, 593-601 (1991).
- A. Mank, M. Drescher, T. Huth-Fehre,
    N.Böwering, U. Heinzmann and H. Lefebvre-Brion:
 "Photoionization of jet-cooled HI with coherent VUV-radiation:
    Evidence for Hund's case (e)"
 J. Chem. Phys. 95, 1676-1687 (1991).
- N. Böwering, M. Müller, M. Salzmann and U.
    Heinzmann:
 "Angle-resolved measurements of the photoelectron spin polarisation
    in the photoionisation of HI molecules"
 J. Phys. B: At. Mol. Opt. Phys. 24, 4793-4801 (1991).
- N. Böwering, M. Salzmann, M. Müller, H.W.
    Klausing and U. Heinzmann:
 "Vibrationally resolved photoelectron-spin-polarization
    spectroscopy of HI molecules"
 Phys. Rev. A 45, R11-R14 (1992).
- N. Böwering, H.W. Klausing, M. Müller, M.
    Salzmann and U. Heinzmann:
 "Observation of vibrational excitation in photoelectron
    spectroscopy of HI 2Π"
 Chem. Phys. Lett. 189, 467-472 (1992).
- H. Müller, B. Dierks, F. Hamza, Z. Zagatta,
    G.H. Fecher, N. Böwering and U. Heinzmann:
 "Collision of oriented NO with Ni(100) and with oriented CO on
    Ni(100)"
 Surf. Sci. 269/270, 207-212 (1992).
- M. Volkmer, Ch. Meier, A. Mihill, M. Fink and N.
    Böwering:
 "Elastic Electron Scattering from CH3I Molecules
    Oriented in the Gas Phase"
 Phys. Rev. Lett. 68, 2289-2292 (1992).
- R. Kuntze, M. Salzmann, N. Böwering and U.
    Heinzmann:
 "Spin-resolved Auger Electron Spectroscopy of Barium Atoms"
 Phys. Rev. Lett. 70, 3716-3719 (1993).
- M. Drescher, A. Brockhinke, N. Böwering, U.
    Heinzmann and H. Lefebvre-Brion:
 "Rotationally resolved single-photon ionization of HCl and DCl"
 J. Chem. Phys. 99, 2300-2306 (1993).
- A. Mank, M. Drescher, A. Brockhinke, N.
    Böwering and U. Heinzmann:
 "Angle- and spin-resolved photoelectron spectroscopy in
    rotationally resolved photoionization of HI"
 Z. Phys. D 29, 275-289 (1994).
- H. Müller, G. Zagatta, N. Böwering and U.
    Heinzmann:
 "Orientation Dependence of NO Sticking and Scattering at
    Pt(100)"
 Chem. Phys. Lett. 223, 197-201 (1994).
- N. Böwering, M. Volkmer, Ch. Meier, J. Lieschke
    and M. Fink:
 "Electron diffraction from oriented molecules:
    e-CH3Cl"
 Z. Phys. D 30, 177-182 (1994).
- Ch. Meier, M. Volkmer, J. Lieschke, M. Fink and N.
    Böwering:
 "Intramolecular multiple scattering in electron diffraction from
    fluoro-methyl halides"
 Z. Phys. D 30, 183-187 (1994).
- R. Kuntze, M. Salzmann, N. Böwering and U.
    Heinzmann:
 "Spin polarization of Auger- and of photoelectrons from barium
    atoms exposed to circularly polarized radiation and their cross
    comparison"
 Z. Phys. D 30, 235-237 (1994).
- G. Zagatta, H. Müller, N. Böwering and U.
    Heinzmann:
 "Multimass thermal desorption spectroscopy as a monitoring device
    for chemical reaction products"
 Rev. Sci. Instrum. 65, 359-362 (1994).
- H. Müller, G. Zagatta, M. Brandt, O. Wehmeyer,
    N. Böwering, and U. Heinzmann:
 "Orientation dependent CO2 production by exposing a CO
    precovered Pt(100) surface to gas phase oriented NO"
 Surf. Sci. 307-309, 159-164 (1994).
- G. Zagatta, H. Müller, O. Wehmeyer, M. Brandt,
    N. Böwering and U. Heinzmann:
 "Quantitative mass analysis of N2, CO2 and
    N2O reaction products in the NO-CO reaction at
    Pt(100)"
 Surf. Sci. 307-309, 199-204 (1994).
- M. Salzmann, N. Böwering, H.-W. Klausing, R.
    Kuntze and U. Heinzmann:
 "Spin-resolved photoelectron spectroscopy of HBr in the resonance
    region of electronic autoionization"
 J. Phys. B: At. Mol. Opt. Phys. 27, 1981-1992 (1994).
- R. Kuntze, M. Salzmann, N. Böwering, U.
    Heinzmann, V.K. Ivanov, and N.M. Kabachnik:
 "Spin polarization spectroscopy of Auger- and photoelectrons in 5p
    ionization of barium atoms"
 Phys. Rev. A 50, 489-495 (1994).
- T. Döhring, J. Stiehler, N. Böwering and
    U. Heinzmann:
 "Soft x-ray spectrum of a laser-produced gallium plasma"
 J. Phys. B: At. Mol. Opt. Phys. 27, L663-L669 (1994).
- H. Müller, B. Dierks, G.H. Fecher, N.
    Böwering and U. Heinzmann:
 "Influence of orientation on coadsorption dynamics: CO displacement
    from a c(2x2) precovered Ni(100) surface by free oriented NO"
 J. Chem. Phys. 101, 7154-7160 (1994).
- M. Brandt, H. Müller, G. Zagatta, O. Wehmeyer,
    N. Böwering and U. Heinzmann:
 "Sticking and scattering of gas-phase oriented NO at Pt(100) as a
    function of the translational energy and of molecular
    orientation"
 Surf. Sci. 331-333, 30-34 (1995).
- N. Böwering, M. Volkmer, Ch. Meier, J.
    Lieschke, R. Dreier:
 "Electron Diffraction from Oriented Molecules and Implications for
    Molecular Structure Analysis"
 J. Mol. Struct. 348, 49-52 (1995).
- N. Müller, R. David, G. Snell, R. Kuntze, M.
    Drescher, N. Böwering, P. Stoppmanns, S.-W. Yu, U. Heinzmann,
    J. Viefhaus, U. Hergenhahn and U. Becker:
 "Spin resolved Auger electron spectroscopy after photoexcitation
    with circularly polarized radiation from the BESSY crossed
    undulator"
 J. Electr. Spectrosc. Rel. Phenom. 72, 187-193 (1995).
- M. Drescher, R. Irrgang, A. Elizarov, N.
    Böwering and U. Heinzmann:
 "Evidence for a molecule-rotation dependent spin polarization
    transfer mechanism in the photon-induced autoionization of HCl and
    DCl"
 Phys. Rev. Lett. 75, 2936-2939 (1995).
- M. Volkmer, Ch. Meier, J. Lieschke, A. Mihill, M.
    Fink and N. Böwering:
 "Dependence of the elastic electron differential cross section on
    molecular orientation: e-CH3I"
 Phys. Rev. A 53, 1457-1468 (1996).
- M. Salzmann, N. Böwering, H.-W. Klausing and U.
    Heinzmann:
 "Angle- and spin-resolved photoelectron spectroscopy of the pπ
    outer valence shell of HBr molecules"
 Z. Phys. D 36, 137-146 (1996).
- R. Kuntze, N. Böwering, M. Salzmann, U.
    Heinzmann and N.L.S. Martin:
 "Spin polarization of photoelectrons from zinc atoms in the
    3d9 4s2 4p autoionization region"
 J. Phys. B: At. Mol. Opt. Phys. 29, 1025-1033 (1996).
- R. Kuntze, M. Salzmann, N. Böwering, U.
    Heinzmann, N.A. Cherepkov:
 "Photoionization of an open-shell atom with open-shell final ionic
    state: A spin-resolved study of photoelectrons above the
    Tl+(6s6p) 3P1 limit"
 J. Electr. Spectrosc. Rel. Phenom. 79, 335-338 (1996).
- R. Irrgang, N. Böwering, M. Drescher, M.
    Spieweck, U. Heinzmann:
 "High resolution single-photon ionization of HBr in the spin-orbit
    autoionization region"
 J. Chem. Phys. 104, 8966-8972 (1996).
- N. Böwering "Gas-phase electron scattering from
    free spatially oriented molecules"
 in: Selected Topics in Electron Physics (Proceedings of the
    Peter Farago Symposium), D.M. Campbell and H. Kleinpoppen
    (editors), (Plenum Press, New York, London, 1996) p. 193-203.
- M. Brandt, H. Müller, G. Zagatta, N.
    Böwering, U. Heinzmann:
 "Reaction of NO and CO on a Rh(100) surface studied with gas-phase
    oriented NO"
 Surf. Sci. 352-354, 290-294 (1996).
- M. Volkmer, Ch. Meier, J. Lieschke, R. Dreier, M.
    Fink and N. Böwering:
 "Azimuthal dependence of the differential cross section in electron
    scattering from free oriented CH3Cl molecules"
 Phys. Rev. A 56, R1690-R1693 (1997).
- M. Brandt, G. Zagatta, N. Böwering, and U.
    Heinzmann:
 "Reaction of NO and CO on a Pt(100) surface as a function of the NO
    translational energy and of molecular orientation"
 Surf. Sci. 385, 346-356 (1997).
- M. Brandt, T. Greber, N. Böwering, and U.
    Heinzmann:
 "The role of molecular state and orientation in harpooning
    reactions: N2O on Cs"
 Phys. Rev. Lett. 81, 2376-2379 (1998).
- M. Brandt, T. Greber, F. Kuhlmann, N. Böwering,
    and U. Heinzmann:
 "State and orientation dependent N2 emission in the
    N2O + Cs reaction"
 Surf. Sci. 402-404, 160-164 (1998).
- N. Böwering, "Electron Scattering from Free
    Oriented Molecules"
 in: Photonic, Electronic and Atomic Collisions, F. Aumayr
    and H.P. Winter, edts., (World Scientific, Singapore, 1998) p.
    259-268.
- N. Böwering, M. Martins, G. Snell, R. Kuntze
    and U. Heinzmann:
 "Spin-resolved photoelectron spectroscopy in the autoionization
    region of atomic bismuth"
 J. Phys. B: At. Mol. Opt. Phys. 31, 5221-5232 (1998).
- M. Salzmann, M. Müller, N. Böwering and U.
    Heinzmann:
 "Photoelectron spin polarization in autoionization of NO molecules
    prepared by jet-cooling"
 J. Phys. B: At. Mol. Opt. Phys. 32, 2517-2528 (1999).
- M. Brandt, F. Kuhlmann, T. Gerber, N. Böwering
    and U. Heinzmann:
 "Interaction of gas-phase oriented N2O with lithium:
    evidence for an Eley-Rideal mechanism"
 Surf. Sci. 439, 49-58 (1999).
- N. Böwering, T. Lischke, B. Schmidtke, N.
    Müller, T. Khalil and U. Heinzmann:
 "Asymmetry in photoelectron emission from chiral molecules induced
    by circularly polarized light"
 Phys. Rev. Lett. 86, 1187-1190 (2001).
- N. Koch, D. Pop, R.L. Weber, N. Böwering, B.
    Winter, M. Wick, G. Leising, I.V. Hertel,
 W. Braun:
 "Radiation induced degradation and surface charging of organic thin
    films in ultraviolet photoemission spectroscopy"
 Thin Solid Films 391, 81-87 (2001).
- I.V. Fomenkov, W. N. Partlo, R.M. Ness, I.R. Oliver,
    S.T. Melnychuk, O.V. Khodykin, N.R. Böwering:
 "Optimization of a Dense Plasma Focus Device as a Light Source for
    EUV Lithography"
 in: Emerging Lithographic Technologies VI, Proc. SPIE Vol.
    4688, 634-647 (2002).
- I.V. Fomenkov, R.M. Ness, I.R. Oliver, S.T.
    Melnychuk, O.V. Khodykin, N.R. Böwering, C.L. Rettig, J.R.
    Hoffman:
 "Performance and Scaling of a Dense Plasma Focus Light Source for
    EUV Lithography"
 in: Emerging Lithographic Technologies VII, Proc. SPIE Vol.
    5037, 807-821 (2003).
- I.V. Fomenkov, R.M. Ness, I.R. Oliver, S.T.
    Melnychuk, O.V. Khodykin, N.R. Böwering, C.L. Rettig, J.R.
    Hoffman:
 "Performance and Scaling of a Dense Plasma Focus Light Source for
    EUV Lithography"
 in: SEMI Technology Symposium STS-ISM, Proc. SEMICON
    West2003, ISBN # 1-892568-78-0 (2003).
- N. Böwering, M. Martins, W.N. Partlo and I.V.
    Fomenkov:
 "Extreme ultraviolet emission spectra of highly ionized xenon and
    their comparison with model calculations"
 J. Appl. Phys. 95, 16-23 (2004).
- I.V. Fomenkov, R.M. Ness, I.R. Oliver, S.T.
    Melnychuk, O.V. Khodykin, N.R. Böwering, C.L. Rettig, J.R.
    Hoffman:
 "Performance and Scaling of a Dense Plasma Focus Light Source for
    EUV Lithography"
 in: Emerging Lithographic Technologies VIII, Proc. SPIE Vol.
    5374, 168-182 (2004).
- T. Lischke, N. Böwering, B. Schmidtke, N.
    Müller, T. Khalil, and U. Heinzmann:
 "Circular dichroism in valence photoelectron spectroscopy of free
    unoriented chiral molecules: Camphor and bromocamphor"
 Phys. Rev. A 70, 022507-022519 (2004).
- I.V. Fomenkov, N. Böwering, C. L. Rettig, S.T.
    Melnychuk, I.R. Oliver, J.R. Hoffman, O.V. Khodykin, R.M. Ness, and
    W.N. Partlo:
 "EUV discharge light source based on a dense plasma focus operated
    with positive and negative polarity"
 J. Phys. D: Appl. Phys. 37, 3266-3276 (2004).
- J.R. Hoffman, A.N. Bykanov, O.V. Khodykin, A.I.
    Ershov, N. R. Böwering, I.V. Fomenkov., W.N. Partlo, D.W.
    Myers:
 "LPP EUV Conversion Efficiency Optimization"
 in: Emerging Lithographic Technologies IX, Proc. SPIE Vol.
    5751, 892-901 (2005).
- C.L. Rettig, O.V. Khodykin, J.R. Hoffman, W.F. Marx,
    N. R. Böwering, E. Vargas, A.I. Ershov, I.V. Fomenkov., W.N.
    Partlo:
 "Protection of Collector Optics in an LPP Based EUV Source"
 in: Emerging Lithographic Technologies IX, Proc. SPIE Vol.
    5751, 910-918 (2005).
- N.R. Böwering, J.R. Hoffman, O.V. Khodykin,
    C.L. Rettig, B.A.M. Hansson, A.I. Ershov, I.V. Fomenkov:
 "Metrology of laser-produced plasma light source for EUV
    lithography"
 in: Metrology, Inspection, and Process Control for
    Microlithography XIX, Proc. SPIE Vol. 5752, 1248-1256
    (2005).
- I.V. Fomenkov, W. N. Partlo, N. R. Böwering,
    O.V. Khodykin, C.L. Rettig, R. N. Ness, J.R. Hoffman, I. R. Oliver,
    S.T. Melnychuk:
 "Dense Plasma Focus Source"
 Chapter 12 in EUV Sources for Lithography, Vivek Bakshi,
    Editor, SPIE Press, Bellingham, Washington USA, pp. 373-393
    (2006).
- B. A. M. Hansson, I. V. Fomenkov, N. R.
    Böwering, A. I. Ershov, W. N. Partlo, D. W. Myers, O. V.
    Khodykin, A. N. Bykanov, C. L. Rettig, J. R. Hoffman, E. Vargas L.,
    R. D. Simmons, J. A. Chavez, W. F. Marx, D. C. Brandt:
 "LPP EUV Source Development for HVM"
 in: Emerging Lithographic Technologies X, Proc. SPIE Vol.
    6151, 61510R (2006).
- N. R. Böwering, A. I. Ershov, W. F. Marx, O.V.
    Khodykin, B. A. M. Hansson, E. Vargas L., J. A. Chavez, I. V.
    Fomenkov, D. W. Myers, D. C. Brandt:
 "EUV Source Collector"
 in: Emerging Lithographic Technologies X, Proc. SPIE Vol.
    6151, 61513R (2006).
- I. V. Fomenkov, B. A. M. Hansson, N. R.
    Böwering, A. I. Ershov, W. N. Partlo, V. B. Fleurov, O.V.
    Khodykin, A. N. Bykanov, C. L. Rettig, J. R. Hoffman, E. Vargas L.,
    J. A. Chavez, W. F. Marx, D. C. Brandt:
 "High Power Low Cost Drive Laser for LPP Source"
 in: Emerging Lithographic Technologies X, Proc. SPIE Vol.
    6151, 61513X (2006).
- T. Feigl, S. Yulin, N. Benoit, N. Kaiser, N. R.
    Böwering, A. I. Ershov, O.V. Khodykin, J. W. Viatella, K. A.
    Bruzzone, I. V. Fomenkov, D. W. Myers:
 "High-Temperature LPP Collector Mirror"
 in: Emerging Lithographic Technologies X, Proc. SPIE Vol.
    6151, 61514A (2006).
- D. C. Brandt, I. V. Fomenkov,, A. I. Ershov, W. N.
    Partlo, D. W. Myers, N. R. Böwering, A. N. Bykanov, G. O.
    Vaschenko, O. V. Khodykin, J. R. Hoffman, E. Vargas L., R. D.
    Simmons, J. A. Chavez, C. P. Chrobak:
 "LPP EUV Source Development for HVM"
 in: Emerging Lithographic Technologies XI, Proc. SPIE Vol.
    6517, 65170Q, (2007).
- I. V. Fomenkov, D. C. Brandt, A. N. Bykanov, A. I.
    Ershov, W. N. Partlo, D. W. Myers, N. R. Böwering, G. O.
    Vaschenko, O. V. Khodykin, J. R. Hoffman, E. Vargas L., R. D.
    Simmons, J. A. Chavez, C. P. Chrobak:
 "Laser-Produced Plasma Source System Development"
 in: Emerging Lithographic Technologies XI, Proc. SPIE Vol.
    6517, 65173J, (2007).
- T. Feigl, S. Yulin, N. Benoit, M. Perske, M.
    Schürmann, N. Kaiser, N. R. Böwering, O.V. Khodykin I. V.
    Fomenkov, D. C. Brandt:
 "Enhanced Reflectivity and Stability of High-Temperature LPP
    Collector Mirrors"
 in: Advances in X-Ray/EUV Optics and Components III, Proc.
    SPIE Vol. 7077, 70771W, (2008).
- D. C. Brandt, I. V. Fomenkov, A. I. Ershov, W. N.
    Partlo, D. W. Myers, N. R. Böwering, G. O. Vaschenko, O. V.
    Khodykin, A. N. Bykanov, J. R. Hoffman, C. P. Chrobak, S. N.
    Srivastava, D. A. Vidusek, S. De Dea, R. R. Hou:
 "Laser-produced plasma source system development"
 in: Lithography Asia 2008, Proc. SPIE Vol. 7140,
    71401E, (2008).
- Nigel Farrar, David Brandt, Norbert
    Böwering:
 "Optics for Scanning: Multilayer collector mirrors enable
    next-generation EUV Lithography"
 in: Laser Focus World 45(3), March
    2009.
- D. C. Brandt, I. V. Fomenkov,, A. I. Ershov, W. N.
    Partlo, D. W. Myers, N. R. Böwering, N. R. Farrar, G. O.
    Vaschenko, O. V. Khodykin, A. N. Bykanov, J. R. Hoffman, C. P.
    Chrobak, S. N. Srivastava, I. Ahmad, C. Rajyaguru, D. J. Golich, D.
    A. Vidusek, S. De Dea, R. R. Hou:
 "LPP Source System Development for HVM"
 in: Alternative Lithographic Technologies, Proc. SPIE Vol.
    7271, 727103 (2009).
- I. V. Fomenkov, D. C. Brandt, A. N. Bykanov, A. I.
    Ershov, W. N. Partlo, D. W. Myers, N. R. Böwering, N. I.
    Farrar, G. O. Vaschenko, O. V. Khodykin, J. R. Hoffman, C. P.
    Chrobak, S. N. Srivastava, D. J. Golich, D. A. Vidusek, S. De Dea,
    R. R. Hou:
 "Laser-Produced Plasma Light Source for EUVL"
 in: Alternative Lithographic Technologies, Proc. SPIE Vol.
    7271, 727138 (2009).
- Nigel R. Farrar, David C. Brandt, Igor V. Fomenkov,
    Alex I. Ershov, Norbert R. Bowering, William N. Partlo, David W.
    Myers, Alexander N. Bykanov, Georgiy O. Vaschenko, Oleh V.
    Khodykin, Jerzy R. Hoffman, Christopher P. Chrobak:
 "EUV laser produced plasma source development"
 Microelectronic Engineering 86, 509 - 512 (2009).
- Norbert R. Böwering, Igor V. Fomenkov, David C.
    Brandt, Alexander N. Bykanov, Alex I. Ershov, William N. Partlo,
    David W. Myers, Nigel I. Farrar, Georgiy O. Vaschenko, Oleh V.
    Khodykin, Jerzy R. Hoffman, Christopher P. Chrobak, Shailendra N.
    Srivastava, Imtiaz Ahmad, Chirag Rajyaguru, Daniel J. Golich, David
    A. Vidusek, Silvia De Dea, Richard R. Hou:
 "Performance results of laser-produced plasma test and prototype
    light sources for EUV lithography"
 Journal of Micro/Nanolith. MEMS MOEMS 8(4), 041504
    (2009).
- D. C. Brandt, I. V. Fomenkov,, A. I. Ershov, W. N.
    Partlo, D. W. Myers, R. L. Sandstrom, N. R. Böwering, G. O.
    Vaschenko, O. V. Khodykin, A. N. Bykanov, J. R. Hoffman, S. N.
    Srivastava, I. Ahmad, C. Rajyaguru, D. J. Golich, S. De Dea, R. R.
    Hou, K. M. O’ Brien, W. J. Dunstan:
 "LPP Source System Development for HVM"
 in: Extreme Ultraviolet (EUV) Lithography, Proc. SPIE Vol.
    7636, 76361I (2010).
- I. V. Fomenkov,, A. I. Ershov, W. N. Partlo, D. W.
    Myers, R. L. Sandstrom, N. R. Böwering, G. O. Vaschenko, O. V.
    Khodykin, A. N. Bykanov, J. R. Hoffman, S. N. Srivastava, I. Ahmad,
    C. Rajyaguru, D. J. Golich, S. De Dea, R. R. Hou, K. M. O’
    Brien, W. J. Dunstan, D. C. Brandt:
 "Laser Produced Plasma Light Source for EUVL"
 in: Extreme Ultraviolet (EUV) Lithography, Proc. SPIE Vol.
    7636, 763639 (2010).
- D. C. Brandt, I. V. Fomenkov, A. I. Ershov, W. N. Partlo,
    D. W. Myers, R. L. Sandstrom, B. M. La Fontaine, M. J. Lercel,
    A. N. Bykanov, N. R. Böwering, G. O. Vaschenko, O. V. Khodykin,
    S. N. Srivastava, I. Ahmad, C. Rajyaguru, P. Das, V. B. Fleurov,
    K. Zhang, D. J. Golich, S. De Dea, R. R. Hou, W. J. Dunstan, C.
    J. Wittak, P. Baumgart, T. Ishihara, R. D. Simmons, R. N. Jacques,
    R. A. Bergstedt:
 "LPP Source System Development for HVM"
 in: Extreme Ultraviolet (EUV) Lithography II, Proc. SPIE Vol.
    7969, 79691H (2011).
- I. V. Fomenkov, A. I. Ershov, W. N. Partlo, D. W. Myers,
    D. Brown, R. L. Sandstrom, B. La Fontaine, A. N. Bykanov, G. O. Vaschenko,
    O. V. Khodykin, N. R. Böwering, P. Das, V. B. Fleurov, K. Zhang,
    S. N. Srivastava, I. Ahmad, C. Rajyaguru, S. De Dea, R. R. Hou,
    W. J. Dunstan, P. Baumgart, T. Ishihara, R. D. Simmons, R. N. Jacques,
    R. A. Bergstedt, D. C. Brandt:
 "Laser Produced Plasma Light Source for EUVL"
 in: Extreme Ultraviolet (EUV) Lithography II, Proc. SPIE Vol.
    7969, 796933 (2011).
- D. C. Brandt, I. V. Fomenkov, M. J. Lercel,
    B. M. La Fontaine, D. W. Myers, D. J. Brown, A. I. Ershov,
    R. L. Sandstrom, A. N. Bykanov, G. O. Vaschenko, N. R. Böwering,
    P. Das, V. B. Fleurov, K. Zhang, S. N. Srivastava, I. Ahmad, C. Rajyaguru,
    S. De Dea, W. J. Dunstan, P. Baumgart, T. Ishihara, R. D. Simmons,
    R. N. Jacques, R. A. Bergstedt, P. I. Porshnev, C. J. Wittak,
    M. R. Woolston, R. J. Rafac, J. Grava, A. A. Schafgans, Y. Tao:
 "Laser Produced Plasma EUV Sources for Device Development and HVM"
 in: Extreme Ultraviolet (EUV) Lithography III, Proc. SPIE Vol.
    8322, 83221I (2012).
- I. V. Fomenkov, N. R. Böwering, D. C. Brandt,
    D. J. Brown, A. N. Bykanov, A. I. Ershov, B. La Fontaine, M. J. Lercel,
    D. W. Myers:
 "Light Sources for EUV Lithography  at the 22nm Node and Beyond"
 in: Extreme Ultraviolet (EUV) Lithography III, Proc. SPIE Vol.
    8322, 83222N (2012).
- T. Feigl, M. Perske, H. Pauer, T. Fiedler, S. Yulin,
      M. Trost, S. Schröder, A. Duparre, N. Kaiser, A. Tünnermann,
      N. R. Böwering, A. I. Ershov, K. Hoffmann, B. La Fontaine,
      K. D. Cummings:
 "Optical performance of LPP multilayer collector mirrors"
 in: Extreme Ultraviolet (EUV) Lithography III, Proc. SPIE Vol.
      8322, 832217 (2012).
- I. V. Fomenkov, B. La Fontaine, D. Brown, I. Ahmad,
    P. Baumgart, N. R. Böwering, D. C. Brandt, A. N. Bykanov, S. De Dea,
    A. I. Ershov, N. R. Farrar, D. J. Golich, M. J. Lercel, D. W. Myers,
    C. Rajyaguru, S. N. Srivastava, Y. Tao, G. O. Vaschenko:
 "The development of stable EUV sources for use in lithography exposure
    systems"
 Journal of Micro/Nanolith. MEMS MOEMS 11 (2), 021110 (2012).
- T. Feigl, M. Perske, H. Pauer, T. Fiedler, S. Yulin, 
      N. Kaiser, A. Tünnermann, N. R. Böwering, A. I. Ershov, 
      S. De Dea, K. Hoffmann, B. La Fontaine, I. V. Fomenkov, D. C. Brandt:
      
 "Lifetime and refurbishment of multilayer LPP collector mirrors"
 in: Extreme Ultraviolet (EUV) Lithography IV, Proc. SPIE Vol. 
      8679, 86790C (2013).
- 
      D. C. Brandt, I. V. Fomenkov, N. R. Farrar, 
      B. La Fontaine, D. W. Myers, D. J. Brown, A. I. Ershov, 
      R. L. Sandstrom, G. O. Vaschenko, N. R. Böwering, P. Das, 
      V. B. Fleurov, K. Zhang, S. N. Srivastava, I. Ahmad, C. Rajyaguru, 
      S. De Dea, W. J. Dunstan, P. Baumgart, T. Ishihara, R. D. Simmons, 
      R. N. Jacques, R. A. Bergstedt, P. I. Porshnev, C. J. Wittak, 
      R. J. Rafac, J. Grava, A. A. Schafgans, Y. Tao, K. Hoffmann, 
      T. Ishikawa, D. R. Evans, S. D. Rich:
      
 "CO2/Sn LPP EUV sources for device development and HVM"
 in: Extreme Ultraviolet (EUV) Lithography IV, Proc. SPIE Vol. 
      8679, 86791G (2013).
- 
      I. V. Fomenkov, D. C. Brandt, N. R. Farrar, B. La Fontaine, 
      N. R. Böwering, D. J. Brown, A. I. Ershov, D. W. Myers:
      
 "Laser produced plasma EUV light source for EUVL patterning 
      at 20 nm node and beyond"
 in: Extreme Ultraviolet (EUV) Lithography IV, Proc. SPIE Vol.
      8679, 86792I (2013).
- 
      D. C. Brandt, I. V. Fomenkov, N. R. Farrar, B. La Fontaine, D. W. Myers, 
      D. J. Brown, A. I. Ershov, N. R. Böwering, D. J. Riggs, R. J. Rafac, 
      S. De Dea, R. Peeters, H. Meiling, N. Harned, D. Smith, A. Pirati, 
      R. Kazinczi:
      
 "LPP EUV source readiness for NXE 3300"
 in: Extreme Ultraviolet (EUV) Lithography V, Proc. SPIE Vol. 
      9048, 90480C (2014).
- 
      I. V. Fomenkov, D. C. Brandt, N. R. Farrar, B. La Fontaine, 
      D. W. Myers, D. J. Brown, A. I. Ershov, N. R. Böwering, D. J. Riggs, 
      R. J. Rafac, R. Peeters, H. Meiling, N. Harned, D. Smith, 
      R. Kazinczi, A. Pirati:
      
 "Laser produced plasma light source development for HVM"
 in: Extreme Ultraviolet (EUV) Lithography V, Proc. SPIE Vol.
      9048, 904835 (2014).
- 
      M. Trost, T. Herffurth, S. Schröder, A. Duparre, M. Beier, S. Risse, 
      A. Tünnermann, N.  Böwering:
      
 "In-situ and ex-situ characterization of optical surfaces 
      by light scattering techniques"
 Opt. Eng.
      53, 092013 (2014).
- 
      A. A. Schafgans, D. J. Brown, I. V. Fomenkov, R. L. Sandstrom, 
      A. I. Ershov, G. O. Vaschenko, R. J. Rafac, M. Purvis, S. Rokitski, 
      D. J. Riggs, W. Dunstan, M. Graham, Y. Tao, N. R. Farrar, D. C. Brandt, 
      N. Böwering, A. Pirati, N. Harned, C. Wagner, H. Meiling, R. Kool:
      
 "Performance optimization of MOPA prepulse LPP light source"
 in: Extreme Ultraviolet (EUV) Lithography VI, Proc. SPIE Vol.
      9422, 94220B (2015).
- 
      N. Böwering:
      
 "Induction of tin pest for cleaning tin-drop contaminated optics"
 Mater. Chem. Phys. 198, 236-242 (2017).
- 
      N. Böwering, C. Meier:
      
 "In situ transformation and cleaning of tin-drop contamination 
      on mirrors for extreme ultraviolet light"
 J. Vac. Sci. Technol. B 36, 021602 (2018).
- 
      N. Böwering, C. Meier:
      
 "Sticking behavior and transformation of tin droplets on silicon wafers
      and multilayer-coated mirrors"
 Appl. Phys. A 125, 633 (2019).
- 
      N. Böwering, C. Meier:
      
 "Cryogenic cleaning of tin-drop contamination on surfaces
      relevant for extreme ultraviolet light collection"
 J. Vac. Sci. Technol. B 38, 062602 (2020).
Comments:
    - N. Böwering:
 "Low-power UV Laser"
 Photonics Spectra, 38, 53 (2004).
Patents granted:
  
    - G. Zagatta, H. Müller, N. Böwering, U.
    Heinzmann:
 "Meßanordnung und Meßverfahren zur Charakterisierung
    schneller chemischer Reaktionsabläufe",
 German Patent: Patentanmeldung (6/1993) und Patentschrift (8/1995)
    zu MMTDS, DE 4318626 C2
- N. Böwering:
 "Pulsbare Vorrichtung mit einer Anordnung zur Erzeugung von
    Strahlung sowie Verfahren zur Erzeugung von Strahlung ",
 European Patent: Patentanmeldung 27.06.2000
 published Jan. 02, 2002 EP 1168895
- S. T. Melnychuk, W. N. Partlo, I. V. Fomenkov, I. R.
    Oliver, R. M. Ness, N. Bowering, O. Khodykin:
 "Plasma focus light source with improved pulse power system"
 United States Patent No. US 6,815,700
 issued Nov. 9, 2004
- S. T. Melnychuk, W. N. Partlo, I. V. Fomenkov, I. R.
    Oliver, R. M. Ness, N. Bowering, O. Khodykin, C. L. Rettig, G. M.
    Blumenstock, T. S. Dyer, R. D. Simmons, J. R. Hoffman, R. M.
    Johnson:
 "Extreme ultraviolet light source"
 United States Patent No. US 6,972,421
 issued Dec. 6, 2005
 
- N. R. Bowering, B. A. M. Hansson, A. N. Bykanov, O.
    Khodykin, A. I. Ershov, W. N. Partlo:
 "Systems for protecting internal components of an EUV light source
    from plasma-generated debris"
 United States Patent No. US 7,109,503
 issued Sep. 19, 2006
- W. N. Partlo, N. R. Bowering, A. I. Ershov, I. V.
    Fomenkov, D. A. Myers, R. I. Oliver, J. Viatella, R. N.
    Jacques:
 "EUV light source"
 United States Patent No. US 7,164,144
 issued Jan. 16, 2007
- N. R. Bowering, A. I. Ershov, T. S. Dyer, H. R.
    Grinolds:
 "EUV light source optical elements"
 United States Patent No. US 7,193,228
 issued Mar. 20, 2007
- W. N. Partlo, J. M. Algots, G. M. Blumenstock, N. R.
    Bowering, A. I. Ershov, I. V. Fomenkov, X. Pan:
 "Collector for EUV light source"
 United States Patent No. US 7,217,940
 issued May. 15, 2007
- W. N. Partlo, N. R. Bowering, A. I. Ershov, I. V.
    Fomenkov:
 "Collector for EUV light source"
 United States Patent No. US 7,288,778
 issued Oct. 30, 2007
- I. V. Fomenkov, W. N. Partlo, G. M. Blumenstock, N.
    R. Bowering, I. R. Oliver, X. Pan, R. D. Simmons:
 "Discharge produced plasma EUV light source"
 United States Patent No. US 7,291,853
 issued Nov. 6, 2007
- N. R. Bowering:
 "Collector for EUV light source"
 United States Patent No. US 7,309,871
 issued Dec. 18, 2007
- I. R. Oliver, W. N. Partlo, I. V. Fomenkov, A. I.
    Ershov, N. Bowering, J. Viatella, D. W. Myers:
 "EUV light source"
 United States Patent No. US 7,323,703
 issued Jan. 29, 2008
- R. P. Akins, R. L. Sandstrom, W. N. Partlo, I. V.
    Fomenkov, T. D. Steiger, J. M. Algots, N. R. Bowering, R. N.
    Jacques, F. A. Palenschat, J. Song:
 "High repetition rate laser produced plasma EUV light source"
 United States Patent No. US 7,361,918
 issued Apr. 22, 2008
- N. Bowering, B. A. M. Hansson:
 "Systems for protecting internal components of a EUV light source
    from plasma-generated debris"
 United States Patent No. US 7,365,351
 issued Apr. 29, 2008
- S. T. Melnychuk, W. N. Partlo, I. V. Fomenkov, I. R.
    Oliver, R. M. Ness, N. R. Bowering, O. Khodykin, C. L. Rettig, G.
    M. Blumenstock, T. S. Dyer, R. D. Simmons, J. R. Hoffman, R. M.
    Johnson:
 "Extreme ultraviolet light source"
 United States Patent No. US 7,368,741
 issued May 6, 2008
- N. R. Bowering, J. R. Hoffman:
 "Systems and methods for EUV light source metrology"
 United States Patent No. US 7,394,083
 issued Jul. 1, 2008
- N. R. Bowering, B. A. M. Hansson, R. D. Simmons:
 "EUV light source"
 United States Patent No. US 7,453,077
 issued Nov. 18, 2008
- N. R. Bowering, O. V. Khodykin, A. N. Bykanov, I.V.
    Fomenkov:
 "Alternative fuels for EUV light source"
 United States Patent No. US 7,465,946
 issued Dec. 16, 2008
- N. Bowering:
 "High repetition rate laser produced plasma EUV light source"
 United States Patent No. US 7,525,111
 issued Apr. 28, 2009
- A.N. Bykanov, J.M. Algots, O.V. Khodykin, O.
    Hemberg, N.R. Bowering:
 "LPP EUV plasma source material target delivery system "
 United States Patent No. US 7,589,337
 issued Sep. 15, 2009
- A.I. Ershov, W.N. Partlo, N. Bowering, B.
    Hansson:
 "Laser produced plasma EUV light source"
 United States Patent No. US 7,598,509
 issued Oct. 6, 2009
- A.N. Bykanov, N. Bowering, I.V. Fomenkov, D.C.
    Brandt, A.I. Ershov, O. Khodykin, W.N. Partlo:
 "Laser produced plasma EUV light source"
 United States Patent No. US 7,671,349
 issued Mar. 2, 2010
- A.I. Ershov, W.F. Marx, N. Bowering, B.A.M. Hansson,
    O. Khodykin, I.V. Fomenkov:
 "Systems and methods for reducing the influence of plasma-generated
    debris on the internal components of an EUV light source"
 United States Patent No. US 7,732,793
 issued Jun. 8, 2010
- N. R. Bowering:
 "EUV optics"
 United States Patent No. US 7,843,632
 issued Nov 30, 2010
- G.O. Vaschenko, A.N. Bykanov, N.R. Bowering, D.C. Brandt,
    A.I. Ershov, R.D. Simmons, O.V. Khodykin, I.V. Fomenkov:
 "Systems and methods for target material delivery in a laser produced
    plasma EUV light source"
 United States Patent No. US 7,872,245
 issued Jan. 18, 2011
- N. R. Bowering, O. V. Khodykin:
 "EUV light source components and methods for producing, using and
    refurbishing same"
 United States Patent No. US 7,906,701
 issued Jun 14, 2011
- A.N. Bykanov, N.  Bowering, I.V. Fomenkov, A.I. Ershov,
    O.V. Khodykin:
 "Laser produced plasma EUV light source"
 United States Patent No. US 8,035,092
 issued Oct. 11, 2011
- Juan Armando Chavez, Norbert R. Bowering:
 "Systems and Methods for heating an EUV collector mirror"
 United States Patent No. US 8,198,612
 issued Jun 12, 2012
- 
      N. R. Bowering, I. V. Fomenkov, O. V. Khodykin, A. N. Bykanov:
 "EUV light source components and methods for producing, 
      using and refurbishing same"
 United States Patent No. US 8,314,398
 issued Nov. 20, 2012
- 
      A. I. Ershov, I. V. Fomenkov, N. R. Bowering, J. R. Hoffman:
 "Drive laser for EUV light source"
 United States Patent No. US 8,514,486
 issued Aug. 20, 2013
- 
      N. R. Bowering, I. V. Fomenkov:
 "EUV optics"
 United States Patent No. US 8,598,549
 issued Dec. 3, 2013
- 
      N. R. Bowering, O. V. Khodykin:
 "EUV light source components and methods for producing, 
      using and refurbishing same"
 United States Patent No. US 8,686,370
 issued Apr. 1, 2014
- 
      N. R. Bowering, I. V. Fomenkov:
 "EUV optics"
 United States Patent No. US 8,907,310
 issued Dec. 9, 2014
- S. De Dea, G. O. Vaschenko, P. Baumgart, N. Bowering:
 "Target material supply apparatus for an extreme ultraviolet light source"
 United States Patent No. US 9,392,678
 issued Jul. 12, 2016
- 
      S. De Dea, G. O. Vaschenko, P. Baumgart, N. Bowering:
 "Target material supply apparatus for an extreme ultraviolet light source"
 United States Patent No. US 9,632,418
 issued Apr. 25, 2017
- 
      A. I. Ershov, J. R. Hoffman, N. R. Bowering, I. V. Fomenkov:
 "Drive laser for EUV light source"
 United States Patent No. US 9,735,535
 issued Aug. 15, 2017
- 
      A. I. Ershov, N. R. Bowering, B. M. La Fontaine, S. De Dea:
 "Harsh environment optical element protection"
 United States Patent No. US 10,185,234
 issued Jan. 22, 2019
ca. 5 patent applications submitted