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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 17, Iss. 11 — Nov. 1, 2000
  • pp: 1856–1866

Two-photon-resonant difference-frequency mixing with an ArF excimer laser: vacuum-ultraviolet generation and multiphoton spectroscopy

Gregory W. Faris, Scott A. Meyer, Mark J. Dyer, and Michael J. Banks  »View Author Affiliations


JOSA B, Vol. 17, Issue 11, pp. 1856-1866 (2000)
http://dx.doi.org/10.1364/JOSAB.17.001856


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Abstract

Two-photon-resonant difference-frequency generation using an ArF excimer laser provides widely tunable vacuum-ultraviolet (VUV) radiation at high pulse energies. Two-photon resonances in H2, Kr, and Hd are within the tuning range of the ArF laser. With this technique we have directly measured >65µJ at 133 nm. H2 has a significantly smaller phase mismatch than Kr, leading to more efficient VUV generation, particularly at shorter VUV wavelengths. However, mixing in H2 also produces additional VUV lines from two-photon excited amplified spontaneous emission. We have observed new amplified spontaneous-emission lines produced in this manner. H2 is ineffective at generation of Lyman-α radiation owing to the production of H atoms. With a phase-matched mixture of Kr and Ar, we have directly measured 7 µJ at Lyman-α. A physical basis for the asymmetric tuning profile in this gas mixture is presented. With light from this VUV source we have performed 1+1 resonantly enhanced multiphoton ionization in Xe at 147 nm and two-photon-excited fluorescence in Ne at 133 nm.

© 2000 Optical Society of America

OCIS Codes
(140.7240) Lasers and laser optics : UV, EUV, and X-ray lasers
(190.1900) Nonlinear optics : Diagnostic applications of nonlinear optics
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(300.6410) Spectroscopy : Spectroscopy, multiphoton

Citation
Gregory W. Faris, Scott A. Meyer, Mark J. Dyer, and Michael J. Banks, "Two-photon-resonant difference-frequency mixing with an ArF excimer laser: vacuum-ultraviolet generation and multiphoton spectroscopy," J. Opt. Soc. Am. B 17, 1856-1866 (2000)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-17-11-1856

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