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Title: Two-photon selective excitation of phonon-mode in diamond using mid-infrared free-electron laser
Authors: Sato, Oji
Yoshida, Kyohei
Zen, Heishun  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-2719-6985 (unconfirmed)
Hachiya, Kan  kyouindb  KAKEN_id
Goto, Takuya
Sagawa, Takashi  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-0908-0487 (unconfirmed)
Ohgaki, Hideaki  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-3553-4091 (unconfirmed)
Author's alias: 全, 炳俊
蜂谷, 寛
佐川, 尚
大垣, 英明
Keywords: Selective phonon-mode excitation
Free-electron laser
Raman scattering
Two-photon excitation
Diamond
Issue Date: 9-Apr-2020
Publisher: Elsevier BV
Journal title: Physics Letters A
Volume: 384
Issue: 10
Thesis number: 126223
Abstract: Two-photon selective excitation of an infrared (IR)-inactive phonon mode by a mid-infrared tunable free-electron laser (FEL) was accomplished. The mode-selective phonon excitation of IR-active mode by one-photon excitation using FEL (Yoshida et al. (2013) [20]) was extended to the IR-inactive mode excitation. The T2g optical phonon mode in single-crystal diamond at 1, 332cm−1 was selected, and the FEL photon energy corresponding to the oscillation wavelength was tuned to the half of the target phonon energy. The successful mode excitation was confirmed by anti-Stokes Raman scattering signal of T2g for the sample at cryogenic temperature, where all other modes were suppressed. The signal was observed at T2g phonon energy with red-shift of the peak to 1, 306cm−1, which was accompanied by surface damage induced by intense laser irradiations.
Rights: © 2019 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.
The full-text file will be made open to the public on 9 April 2022 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
URI: http://hdl.handle.net/2433/250440
DOI(Published Version): 10.1016/j.physleta.2019.126223
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