Direct observation of the generation of coherent optical phonons in thin antimony films by the femtosecond electron diffraction method

被引：8

作者：

Mironov, B. N. ^{[1
]}

Kompanets, V. O. ^{[1
]}

Aseev, S. A. ^{[1
]}

Ishchenko, A. A. ^{[2
]}

Misochko, O. V. ^{[3
]}

Chekalin, S. V. ^{[1
]}

Ryabov, E. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Spect, Moscow 108840, Russia

[2] Moscow Technol Univ, Pr Vernadskogo 86, Moscow 119571, Russia

[3] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow Region, Russia

来源：

JETP LETTERS | 2016年 / 103卷 / 08期

基金：

俄罗斯基础研究基金会;

关键词：

ULTRABRIGHT ELECTRONS; 4D;

D O I：

10.1134/S0021364016080099

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The generation of coherent optical phonons in an antimony film has been directly observed by the femtosecond electron diffraction method. The sample has been excited by a femtosecond laser pulse (lambda = 800 nm) and probed with a pulsed photoelectron beam. Oscillations of the intensity corresponding to vibration frequencies of optical phonons excited by the laser have been observed in the obtained diffraction patterns: totally symmetric (A (1g)) and twofold degenerate (E (2g)) phonon modes of antimony and their combinations.

引用

页码：531 / 534

页数：4

共 22 条

[1] Seeing in 4D with electrons: Development of ultrafast electron microscopy at Caltech [J].