Observation of coherent optical phonons excited by femtosecond laser radiation in Sb films by ultrafast electron diffraction method
- 作者: Mironov B.N.1, Kompanets V.O.1, Aseev S.A.1, Ischenko A.A.2, Kochikov I.V.3, Misochko O.V.4, Chekalin S.V.1, Ryabov E.A.1
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隶属关系:
- Institute of Spectroscopy
- Institute of High Chemical Technologies
- Moscow State University
- Institute of Solid State Physics
- 期: 卷 124, 编号 3 (2017)
- 页面: 422-428
- 栏目: Atoms, Molecules, Optics
- URL: https://journals.rcsi.science/1063-7761/article/view/192002
- DOI: https://doi.org/10.1134/S1063776117020145
- ID: 192002
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详细
The generation of coherent optical phonons in a polycrystalline antimony film sample has been investigated using femtosecond electron diffraction method. Phonon vibrations have been induced in the Sb sample by the main harmonic of a femtosecond Ti:Sa laser (λ = 800 nm) and probed by a pulsed ultrashort photoelectron beam synchronized with the pump laser. The diffraction patterns recorded at different times relative to the pump laser pulse display oscillations of electron diffraction intensity corresponding to the frequencies of vibrations of optical phonons: totally symmetric (A1g) and twofold degenerate (Eg) phonon modes. The frequencies that correspond to combinations of these phonon modes in the Sb sample have also been experimentally observed.
作者简介
B. Mironov
Institute of Spectroscopy
Email: isanfemto@yandex.ru
俄罗斯联邦, Troitsk, Moscow, 108840
V. Kompanets
Institute of Spectroscopy
Email: isanfemto@yandex.ru
俄罗斯联邦, Troitsk, Moscow, 108840
S. Aseev
Institute of Spectroscopy
编辑信件的主要联系方式.
Email: isanfemto@yandex.ru
俄罗斯联邦, Troitsk, Moscow, 108840
A. Ischenko
Institute of High Chemical Technologies
Email: isanfemto@yandex.ru
俄罗斯联邦, Moscow, 119571
I. Kochikov
Moscow State University
Email: isanfemto@yandex.ru
俄罗斯联邦, Moscow, 119991
O. Misochko
Institute of Solid State Physics
Email: isanfemto@yandex.ru
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
S. Chekalin
Institute of Spectroscopy
Email: isanfemto@yandex.ru
俄罗斯联邦, Troitsk, Moscow, 108840
E. Ryabov
Institute of Spectroscopy
Email: isanfemto@yandex.ru
俄罗斯联邦, Troitsk, Moscow, 108840
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