Photoconductive devices for terahertz pulsed spectroscopy: a review [Invited]

被引:64
作者
Castro-Camus, E. [1 ]
Alfaro, M. [2 ]
机构
[1] Ctr Invest Opt AC, Loma Bosque 115, Guanajuato 37150, Mexico
[2] Univ Autonoma Aguascalientes, Ctr Ciencias Basicas, Dept Matemat & Fis, Ave Univ 940,Ciudad Univ, Aguascalientes 20131, Ags, Mexico
关键词
TIME-DOMAIN SPECTROSCOPY; TEMPERATURE-GROWN GAAS; ION-IMPLANTED GAAS; CARRIER-DYNAMICS; ELECTROMAGNETIC-RADIATION; SURFACE PASSIVATION; GENERATION; POLARIZATION; EMISSION; ANTENNAS;
D O I
10.1364/PRJ.4.000A36
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Photoconductive switches were the key components that allowed the generation and detection of coherent broad-band electromagnetic pulses at terahertz frequencies, opening the possibility for performing spectroscopy and, therefore, measuring complex dielectric properties of materials in this band, which was mostly unexplored. In this paper, we present a brief introduction to the operation principles of these devices. Subsequently, we present a review of the current state-of-the-art in this field and discuss the challenges to be faced in future development of these devices. (C) 2016 Chinese Laser Press
引用
收藏
页码:A36 / A42
页数:7
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