All-semiconductor laser driven terahertz time-domain spectrometer

被引：30

作者：

Joerdens, C. ^{[1
]}

Schlauch, T. ^{[2
]}

Li, M. ^{[2
]}

Hofmann, M. R. ^{[2
]}

Bieler, M. ^{[3
]}

Koch, M. ^{[1
]}

机构：

[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Hochfrequenztech, D-38106 Braunschweig, Germany

[2] Ruhr Univ Bochum, Lehrstuhl Photon & THz Technol, D-44780 Bochum, Germany

[3] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2008年 / 93卷 / 2-3期

关键词：

42; 55; Px; 65; Re; 07; 57; Hm; Kp; 62; Cf;

D O I：

10.1007/s00340-008-3210-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a terahertz time-domain spectrometer pumped by an all-semiconductor femtosecond laser system which emits 600 fs long optical pulses at 830 nm. Standard LT-GaAs antennas are used to generate and coherently detect THz radiation with a bandwidth of 1.4 THz. The measured time traces are in good agreement with simulations based on the Drude-Lorentz model. Spectroscopic measurements on polymers with different additive contents as well as THz imaging were carried out to confirm the successful operation of the spectrometer. Our approach holds great potential for the development of cost-effective, rugged and portable THz spectrometers for a variety of applications.

引用

页码：515 / 520

页数：6

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