Efficient terahertz emission, detection, and ultrafast switching using one-dimensional photonic crystal microcavity

被引：12

作者：

Shirai, Hideto ^{[1
]}

Ishii, Kenta ^{[1
]}

Miyagawa, Hayato ^{[1
]}

Koshiba, Shyun ^{[1
]}

Nakanishi, Shunsuke ^{[1
]}

Tsurumachi, Noriaki ^{[1
]}

机构：

[1] Kagawa Univ, Fac Engn, Takamatsu, Kagawa 760, Japan

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2014年 / 31卷 / 06期

基金：

日本学术振兴会; 日本科学技术振兴机构;

关键词：

GAAS QUANTUM-WELLS; RECENT PROGRESS; ENHANCEMENT; SPECTROSCOPY; RADIATION; RANGE; SUPPRESSION; MODULATOR; DEVICES; SILICON;

D O I：

10.1364/JOSAB.31.001393

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrated the terahertz (THz) emission and detection properties and ultrafast switching effect using a one-dimensional photonic crystal microcavity with a semiconductor. Using this structure as the emission source and electro-optic crystal, the THz emission and detection efficiencies were enhanced to several times relative to bare GaP crystal. The results of experimental and theoretical calculation using the transfer matrix method agree very well. Moreover, ultrafast switching effects were also observed using carrier excitation and recombination of the semiconductor after the optical pump. Finally, we demonstrated ultrafast THz switching with a response time of the order of 1 ps. (C) 2014 Optical Society of America

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页码：1393 / 1401

页数：9

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