Optical manipulation of coherent phonons in superconducting YBa2Cu3O7-δ thin films

被引：8

作者：

Okano, Yasuaki ^{[1
]}

Katsuki, Hiroyuki ^{[1
,2
]}

Nakagawa, Yoshihiro ^{[1
,2
,3
]}

Takahashi, Hiroshi ^{[4
]}

Nakamura, Kazutaka G. ^{[3
,4
]}

Ohmori, Kenji ^{[1
,2
,3
]}

机构：

[1] Natl Inst Nat Sci, Inst Mol Sci, Okazaki, Aichi 4448585, Japan

[2] Grad Univ Adv Studies, SOKENDAI, Okazaki, Aichi 4448585, Japan

[3] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan

[4] Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan

来源：

FARADAY DISCUSSIONS | 2011年 / 153卷

关键词：

WAVE-PACKET; INTERFERENCE; DYNAMICS; PHASE; PULSE;

D O I：

10.1039/c1fd00070e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The coherent phonons of YBa2Cu3O7-delta are believed to be strongly coupled to its superconductivity. Controlling the phonons below its transition temperature, therefore, may serve as a promising scheme of the control of superconductivity. Here we demonstrate optical manipulation of the Ba-O and Cu-O vibrations in a thin-film YBa2Cu3O7-delta below its transition temperature using a pair of femtosecond laser pulses. The interpulse delay is tuned to integral and half-integral multiples of the oscillation period of a specific phonon mode (Ba-O or Cu-O vibration) to enhance and suppress its amplitude, respectively.

引用

页码：375 / 382

页数：8

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