Propagation of intense, ultrashort laser pulses through metal vapor: Reaction-limited behavior for single pulses

被引：22

作者：

Bolton, PR ^{[1
]}

Bullock, AB ^{[1
]}

Decker, CD ^{[1
]}

Feit, MD ^{[1
]}

Megofna, AJP ^{[1
]}

Young, PE ^{[1
]}

Fittinghoff, DN ^{[1
]}

机构：

[1] SANDIA NATL LABS,COMBUST RES FACIL,LIVERMORE,CA 94551

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1996年 / 13卷 / 02期

关键词：

D O I：

10.1364/JOSAB.13.000336

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Propagation of intense, ultrashort laser pulses through self-induced underdense aluminum plasmas is examined at intensity levels of as high as 5 X 10(17) W/cm(2). Observations of the on-axis transmitted portion of the incident pulse are consistent with optical-field ionization and subsequent plasma refraction. A novel application of frequency-resolved optical gating provides measurement of time-resolved spectra, giving amplitude and phase information of the transmitted laser waveform. At high enough incident intensity the transmitted energy is reduced to the 1% level, the short-wavelength extent of the complex spectra can be downshifted by as much as 19% from the incident wavelength, and the duration of the transmitted laser waveform is noticeably shortened. The usefulness of the frequency-resolved optical gating diagnostic in studying the dynamics of ionization and laser-plasma interactions is demonstrated. (C) 1996 Optical Society of America

引用

页码：336 / 346

页数：11

共 39 条

[1] X-RAY LASING BY OPTICAL-FIELD-INDUCED IONIZATION [J].