Generation, shaping, and characterization of intense femtosecond pulses tunable from 3 to 20 μm

Robert A. Kaindl; Matthias Wurm; Klaus Reimann; Peter Hamm; Andrew M. Weiner; Michael Woerner

doi:10.1364/JOSAB.17.002086

Generation, shaping, and characterization of intense femtosecond pulses tunable from 3 to 20 μm

Robert A. Kaindl, Matthias Wurm, Klaus Reimann, Peter Hamm, Andrew M. Weiner, Michael Woerner

Research output: Contribution to journal › Article › peer-review

268 Scopus citations

Abstract

We report on an intense mid-infrared light source that provides femtosecond pulses on a microjoule energy level, broadly tunable in the 3-20-μm wavelength range with pulse durations as short as 50 fs at 5 μm. The pulses are generated by phase-matched difference-frequency mixing in GaSe of near-infrared signal and idler pulses of a parametric device based on a 1-kHz Ti:sapphire amplifier system. Pulse durations are characterized with different techniques including autocorrelation measurements in AgGaS ₂, two-photon absorption in InSb, and cross-correlation measurements with near-infrared pulses in a thin GaSe crystal. A subsequent zero-dispersion stretcher of high transmission allows for optimum pulse compression, a more detailed amplitude and phase characterization and, ultimately, amplitude shaping of the mid-infrared pulses.

Original language	English (US)
Pages (from-to)	2086-2094
Number of pages	9
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	17
Issue number	12
DOIs	https://doi.org/10.1364/JOSAB.17.002086
State	Published - Dec 2000
Externally published	Yes

ASJC Scopus subject areas

Statistical and Nonlinear Physics
Atomic and Molecular Physics, and Optics

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Generation, shaping, and characterization of intense femtosecond pulses tunable from 3 to 20 μm. / Kaindl, Robert A.; Wurm, Matthias; Reimann, Klaus; Hamm, Peter; Weiner, Andrew M.; Woerner, Michael.

In: Journal of the Optical Society of America B: Optical Physics, Vol. 17, No. 12, 12.2000, p. 2086-2094.

Research output: Contribution to journal › Article › peer-review

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abstract = "We report on an intense mid-infrared light source that provides femtosecond pulses on a microjoule energy level, broadly tunable in the 3-20-μm wavelength range with pulse durations as short as 50 fs at 5 μm. The pulses are generated by phase-matched difference-frequency mixing in GaSe of near-infrared signal and idler pulses of a parametric device based on a 1-kHz Ti:sapphire amplifier system. Pulse durations are characterized with different techniques including autocorrelation measurements in AgGaS 2, two-photon absorption in InSb, and cross-correlation measurements with near-infrared pulses in a thin GaSe crystal. A subsequent zero-dispersion stretcher of high transmission allows for optimum pulse compression, a more detailed amplitude and phase characterization and, ultimately, amplitude shaping of the mid-infrared pulses.",

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AU - Woerner, Michael

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AB - We report on an intense mid-infrared light source that provides femtosecond pulses on a microjoule energy level, broadly tunable in the 3-20-μm wavelength range with pulse durations as short as 50 fs at 5 μm. The pulses are generated by phase-matched difference-frequency mixing in GaSe of near-infrared signal and idler pulses of a parametric device based on a 1-kHz Ti:sapphire amplifier system. Pulse durations are characterized with different techniques including autocorrelation measurements in AgGaS 2, two-photon absorption in InSb, and cross-correlation measurements with near-infrared pulses in a thin GaSe crystal. A subsequent zero-dispersion stretcher of high transmission allows for optimum pulse compression, a more detailed amplitude and phase characterization and, ultimately, amplitude shaping of the mid-infrared pulses.

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