High-power picosecond mid-infrared optical parametric amplifier for infrared Raman spectroscopy

被引：35

作者：

Deak, JC

Iwaki, LK

Dlott, DD

机构：

[1] Chem. and Life Sciences Laboratory, School of Chemical Sciences, Univ. Illinois at Urbana-Champaign, Urbana, IL 61801

来源：

OPTICS LETTERS | 1997年 / 22卷 / 23期

关键词：

D O I：

10.1364/OL.22.001796

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A high-power (50-MW), kilohertz, picosecond, mid-IR optical parametric amplifier that is pumped by an amplified Ti:sapphire laser and also produces a fixed-frequency visible pulse is described. Mid-IR pulse energies of 40-55 mu J with 0.6-0.8-ps durations and 35-cm(-1) bandwidths are reported in the 3650-2800-cm(-1) range. The combination of picosecond mid-IR and visible pulses is useful for two-color spectroscopies, which require simultaneous time and frequency resolution. To illustrate the above, we present vibrational relaxation data for the polyatomic molecule nitromethane, using time-resolved infrared Raman spectroscopy. (C) 1997 Optical Society of America.

引用

页码：1796 / 1798

页数：3

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