FEMTOSECOND MULTIPLE-PULSE IMPULSIVE STIMULATED RAMAN-SCATTERING SPECTROSCOPY

被引：161

作者：

WEINER, AM ^{[1
]}

LEAIRD, DE ^{[1
]}

WIEDERRECHT, GP ^{[1
]}

NELSON, KA ^{[1
]}

机构：

[1] MIT,DEPT CHEM,CAMBRIDGE,MA 02139

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1991年 / 8卷 / 06期

关键词：

D O I：

10.1364/JOSAB.8.001264

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical control of elementary molecular motion through impulsive stimulated Raman scattering is enhanced by means of timed sequences of femtosecond pulses that are produced by pulse-shaping techniques. In particular, terahertz-rate trains of femtosecond pulses are used for repetitive impulsive excitation of individual phonon modes in an alpha-perylene molecular crystal. When the pulse repetition rate is matched to the desired phonon frequency, mode-selective vibrational amplification is achieved. A comparison of data acquired with the transient-grating and the pump-probe experimental geometries reveals the timing dynamics of the induced phonon oscillations with respect to the driving femtosecond pulse sequence.

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页码：1264 / 1275

页数：12

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