Broadband phase-matched difference frequency mixing of femtosecond pulses in GaSe: Experiment and theory

被引：123

作者：

Kaindl, RA ^{[1
]}

Eickemeyer, F ^{[1
]}

Woerner, M ^{[1
]}

Elsaesser, T ^{[1
]}

机构：

[1] Max Born Inst Nichtlineare Opt & Kurzzeitspekt, D-12489 Berlin, Germany

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 08期

关键词：

D O I：

10.1063/1.124596

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Phase-matched difference frequency mixing within the broad spectrum of single 13 fs pulses from a cavity-dumped, mode-locked Ti:sapphire laser in a GaSe crystal allows the generation of femtosecond mid-infrared pulses, continuously tunable in the wavelength range from 7 to 20 mu m. Pulse durations down to 95 fs at 9.3 mu m are directly measured. Model calculations including the full dispersion of GaSe show that the chirp of the pump pulses allows to change both the pulse duration and conversion efficiency obtained in the nonlinear process, in agreement with the experiment. (C) 1999 American Institute of Physics. [S0003-6951(99)02334-7].

引用

页码：1060 / 1062

页数：3

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