Note: Coherent detection of terahertz radiation employing a continuous wave optical parametric source

被引：3

作者：

Kiessling, Jens ^{[1
]}

Sowade, Rosita ^{[1
]}

Mayorga, Ivan Camara ^{[2
]}

Buse, Karsten ^{[1
]}

Breunig, Ingo ^{[1
]}

机构：

[1] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

[2] Max Planck Inst Radio Astron, D-53121 Bonn, Germany

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2011年 / 82卷 / 02期

关键词：

GENERATION;

D O I：

10.1063/1.3553397

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The combination of an all-optical terahertz source with a photoconductive antenna to achieve coherent detection is presented. This approach aims to overcome the frequency limits introduced by optoelectronic terahertz sources commonly used. Here the Gaussian-shaped and linearly polarized terahertz waves are generated by a continuous wave optical parametric oscillator with a power of 3 mu W at 1.4 THz. The infrared signal light of the optical parametric oscillator can be used to coherently detect the generated terahertz wave with a photoconductive antenna. As a proof-of-principle experiment we determine the thickness profile of a plastic lens using phase shifting interferometry. (C) 2011 American Institute of Physics. [doi:10.1063/1.3553397]

引用

页数：3

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