Imaging with THz quantum cascade lasers using a Schottky diode mixer

被引：53

作者：

Barbieri, S

Alton, J

Baker, C

Lo, T

Beere, HE

Ritchie, D

机构：

[1] Teraview Ltd, Cambridge CB4 0WS, England

[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

OPTICS EXPRESS | 2005年 / 13卷 / 17期

关键词：

D O I：

10.1364/OPEX.13.006497

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An imaging system in reflection geometry based on a multimode 2.9 THz quantum cascade laser as radiation source is reported. The beating between neighbouring longitudinal modes is detected using a room temperature point-contact Schottky diode as mixing element. We show that the technique can, in principle, give a dynamic range of 60 dB with a time constant of similar to 10 mu s. (c) 2005 Optical Society of America.

引用

收藏

页码：6497 / 6503

页数：7

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