Optical and polarization properties of lead germanate in terahertz frequency range

被引：2
|
作者：
Vlasov, M. Yu. [1 ,2 ]
Merkulova, I. E. [1 ,2 ]
Nikolaev, N. A. [1 ,3 ]
机构：
[1] Russian Acad Sci, Inst Automat & Electrometry, Siberian Branch, 1 Acad Koptug Ave, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, 2 Pirogova St, Novosibirsk 630090, Russia
[3] Russian Acad Sci, Inst High Current Elect, Siberian Branch, 2-3 Akad Sky Ave, Tomsk 634055, Russia
来源：
MATERIALS TODAY-PROCEEDINGS | 2017年 / 4卷 / 11期
基金：
俄罗斯科学基金会;
关键词：
terahertz time-domain spectroscopy; ferroelectrics; optical polarization effect; SINGLE-CRYSTAL; SPECTROSCOPY; PB5GE3O11;
D O I：
10.1016/j.matpr.2017.09.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We measured the absorption coefficients and extinction ratio of ferroelectric lead germanate in the range of 0.2 - 1.2 THz by means of terahertz time-domain spectroscopy. We observed dramatic changes in the dichroism of the crystal induced by temperature shifts between 300 K and 493 K. We estimated the extinction ratio of lead germanate crystal-based wideband terahertz polarizers to be better than 1: 10(5). (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：11327 / 11330
页数：4
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