EPJ Web Conf.
Volume 161, 2017XI International Symposium on Photon Echo and Coherent Spectroscopy (PECS-2017)
|Number of page(s)||2|
|Section||Plenary lectures and invited talks|
|Published online||31 October 2017|
Coherent phonons in Bi2Se3 induced by a powerful THz pulse
Institute of Spectroscopy RAS, 108840 Troitsk, Moscow, Russia
2 P.N. Lebedev Physics Institute RAS, 119991 Moscow, Russia
* e-mail: email@example.com
Published online: 31 October 2017
Using the electro-optic detection method we have detected coherent phonons of Eg1, Eu1, Eg2, and A1g1 symmetry generated in a crystalline film of Bi2Se3 by a powerful single-cycle THz pulse. Coherent excitation of Raman active modes is interpreted as a result of three-and four-phonon interactions in the anharmonic crystal lattice of Bi2Se3.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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