Intuitive analysis of space-time focusing with double-ABCD calculation

被引：70

作者：

Durfee, Charles G. ^{[1
]}

Greco, Michael ^{[1
]}

Block, Erica ^{[1
]}

Vitek, Dawn ^{[1
]}

Squier, Jeff A. ^{[1
]}

机构：

[1] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 13期

关键词：

FEMTOSECOND LASER-PULSES; HARMONIC-GENERATION; DISPERSION; PHASE;

D O I：

10.1364/OE.20.014244

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We analyze the structure of space-time focusing of spatially-chirped pulses using a technique where each frequency component of the beam follows its own Gaussian beamlet that in turn travels as a ray through the system. The approach leads to analytic expressions for the axially-varying pulse duration, pulse-front tilt, and the longitudinal intensity profile. We find that an important contribution to the intensity localization obtained with spatial-chirp focusing arises from the evolution of the geometric phase of the beamlets. (C) 2012 Optical Society of America

引用

页码：14244 / 14259

页数：16

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