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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 16, Iss. 9 — Sep. 1, 1999
  • pp: 1579–1586

Mid-infrared optical parametric generator with extra-wide (3–19-µm) tunability: applications for spectroscopy of two-dimensional electrons in quantum wells

K. L. Vodopyanov  »View Author Affiliations


JOSA B, Vol. 16, Issue 9, pp. 1579-1586 (1999)
http://dx.doi.org/10.1364/JOSAB.16.001579


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Abstract

Using a λ=2.8 µm pump makes it possible to take full advantage of notable nonlinear optical properties of the infrared crystals ZnGeP2, CdSe, and GaSe to achieve efficient mid-infrared frequency downconversion. Traveling-wave optical parametric generators with angular tuning were pumped by single 100-ps 2.8-µm Er,Cr:YSGG laser pulses. The continuous tuning range achieved was 3.9–10 µm (ZnGeP2), 3.57–4.3 and 8–13 µm (CdSe), and 3.3–19 µm (GaSe), with a quantum conversion efficiency of typically 10% and the lowest, to the author’s knowledge, threshold ever obtained for a traveling-wave optical parametric generator. A dual-wavelength optical parametric generator was used for nonlinear spectroscopy of intersubband transitions of conduction-band electrons, quantum confined in semiconductor quantum wells, as well as for the study of intersubband-based resonantly enhanced χ(2) in quantum wells.

© 1999 Optical Society of America

OCIS Codes
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers

Citation
K. L. Vodopyanov, "Mid-infrared optical parametric generator with extra-wide (3–19-μm) tunability: applications for spectroscopy of two-dimensional electrons in quantum wells," J. Opt. Soc. Am. B 16, 1579-1586 (1999)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-16-9-1579

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