Measuring femtosecond pulse in space-time domain

被引：2
|
作者：
Liu Wen-Jun [1 ]
Ren Shou-Tian [1 ]
Qu Shi-Liang [1 ]
机构：
[1] Harbin Inst Technol, Dept Optoelect Sci, Weihai 264209, Peoples R China
来源：
ACTA PHYSICA SINICA | 2010年 / 59卷 / 05期
关键词：
femtosecond pulse; spatiotemporal coupling; 2D diffraction grating; bandpass filter; SPATIOTEMPORAL ELECTRIC-FIELD; ULTRASHORT PULSES;
D O I：
10.7498/aps.59.3286
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We analyze theory of the spatiotemporal coupling in the electric field of a femtosecond pulse. The complete spatiotemporal characterization of femtosecnd pulse is realized by use of spatially and spectrally resolved intensity and phase evaluation device. The apparatus combines the spatially and spectrally resolved interferometry. The unknown and reference pulses pass through a 2D diffraction grating, generating a tilted 2D array of holograms. A tilted bandpass filter separates the beam pairs so that each hologram contains a single, unique frequency. A single camera frame records all of the holograms, from which the complete spatiotemporal field of the unknown pulse can be reconstructed.
引用
收藏
页码：3286 / 3289
页数：4
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