Multichannel terahertz time-domain spectroscopy system at 1030 nm excitation wavelength

被引：39

作者：

Brahm, Anika ^{[1
,2
]}

Wilms, Annika ^{[1
]}

Dietz, Roman J. B. ^{[3
]}

Goebel, Thorsten ^{[3
]}

Schell, Martin ^{[3
]}

Notni, Gunther ^{[1
]}

Tuennermann, Andreas ^{[1
]}

机构：

[1] Fraunhofer Inst Appl Opt & Precis Engn IOF, D-07745 Jena, Germany

[2] Univ Jena, Abbe Ctr Photon, Inst Appl Phys, D-07743 Jena, Germany

[3] Heinrich Hertz Inst Nachrichtentech Berlin GmbH, Fraunhofer Inst Telecommun, D-10587 Berlin, Germany

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 11期

关键词：

THZ GENERATION;

D O I：

10.1364/OE.22.012982

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present Terahertz (THz) imaging with a 1D multichannel time-domain spectroscopy (TDS) system which operates with a photoconductive array of 15 detection channels excited by a 1030 nm femtosecond fiber laser. The emitter and detector are photoconductive antennas based on InGaAs/InAlAs multi-layer heterostructures (MLHS). We characterized the THz optics and the resolution of the system. The performance is demonstrated by the multichannel imaging of two samples. A simultaneous measurement of 15 THz pulses with a pixel pitch of 1 mm increases the measurement speed of the TDS system by factor 15. (C) 2014 Optical Society of America

引用

页码：12982 / 12993

页数：12

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