Observation of coherent optical phonons excited by femtosecond laser radiation in Sb films by ultrafast electron diffraction method
- Авторлар: 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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Мекемелер:
- Institute of Spectroscopy
- Institute of High Chemical Technologies
- Moscow State University
- Institute of Solid State Physics
- Шығарылым: Том 124, № 3 (2017)
- Беттер: 422-428
- Бөлім: Atoms, Molecules, Optics
- URL: https://journals.rcsi.science/1063-7761/article/view/192002
- DOI: https://doi.org/10.1134/S1063776117020145
- ID: 192002
Дәйексөз келтіру
Аннотация
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.
Авторлар туралы
B. Mironov
Institute of Spectroscopy
Email: isanfemto@yandex.ru
Ресей, Troitsk, Moscow, 108840
V. Kompanets
Institute of Spectroscopy
Email: isanfemto@yandex.ru
Ресей, Troitsk, Moscow, 108840
S. Aseev
Institute of Spectroscopy
Хат алмасуға жауапты Автор.
Email: isanfemto@yandex.ru
Ресей, Troitsk, Moscow, 108840
A. Ischenko
Institute of High Chemical Technologies
Email: isanfemto@yandex.ru
Ресей, Moscow, 119571
I. Kochikov
Moscow State University
Email: isanfemto@yandex.ru
Ресей, Moscow, 119991
O. Misochko
Institute of Solid State Physics
Email: isanfemto@yandex.ru
Ресей, Chernogolovka, Moscow oblast, 142432
S. Chekalin
Institute of Spectroscopy
Email: isanfemto@yandex.ru
Ресей, Troitsk, Moscow, 108840
E. Ryabov
Institute of Spectroscopy
Email: isanfemto@yandex.ru
Ресей, Troitsk, Moscow, 108840
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