Absolute terahertz power measurement of a time-domain spectroscopy system

被引：59

作者：

Globisch, Bjoern ^{[1
]}

Dietz, Roman J. B. ^{[1
]}

Goebel, Thorsten ^{[1
]}

Schell, Martin ^{[1
]}

Bohmeyer, Werner ^{[2
]}

Mueller, Ralf ^{[3
]}

Steiger, Andreas ^{[3
]}

机构：

[1] HHI, Fraunhofer Inst Telecommun, D-10587 Berlin, Germany

[2] Sensor & Lasertechn SLT, D-15366 Neuenhagen, Germany

[3] Phys Tech Bundesanstalt PTB, D-10587 Berlin, Germany

来源：

OPTICS LETTERS | 2015年 / 40卷 / 15期

关键词：

DYNAMIC-RANGE; THZ; DETECTORS;

D O I：

10.1364/OL.40.003544

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on, to the best of our knowledge, the first absolute terahertz (THz) power measurement of a photoconductive emitter developed for time-domain spectroscopy (TDS). The broadband THz radiation emitted by a photoconductor optimized for the excitation with 1550-nm femtosecond pulses was measured by an ultrathin pyroelectric thin-film (UPTF) detector. We show that this detector has a spectrally flat transmission between 100 GHz and 5 THz due to special conductive electrodes on both sides of the UPTF. Its flat responsivity allows the calibration with a standard detector that is traceable to the International System of Units (SI) at the THz detector calibration facility of PTB. Absolute THz power in the range from below 1 mu W to above 0.1 mW was measured. (C) 2015 Optical Society of America

引用

收藏

页码：3544 / 3547

页数：4

相关论文

共 11 条

[1] NOVEL TECHNIQUE FOR MEASURING FAR-INFRARED ABSORPTION AND DISPERSION. [J].

Cheung, K.P. ;

Auston, D.H. .

Infrared Physics, 1986, 26 (01) :23-27

[2] Influence and adjustment of carrier lifetimes in InGaAs/InAlAs photoconductive pulsed terahertz detectors: 6 THz bandwidth and 90dB dynamic range [J].

Dietz, Roman J. B. ;

Globisch, Bjoern ;

Roehle, Helmut ;

Stanze, Dennis ;

Goebel, Thorsten ;

Schell, Martin .

OPTICS EXPRESS, 2014, 22 (16) :19411-19422

[3] 64 μW pulsed terahertz emission from growth optimized InGaAs/InAlAs heterostructures with separated photoconductive and trapping regions [J].

Dietz, Roman J. B. ;

Globisch, Bjoern ;

Gerhard, Marina ;

Velauthapillai, Ajanthkrishna ;

Stanze, Dennis ;

Roehle, Helmut ;

Koch, Martin ;

Goebel, Thorsten ;

Schell, Martin .

APPLIED PHYSICS LETTERS, 2013, 103 (06)

[4] Carrier dynamics in Beryllium doped low-temperature-grown InGaAs/InAlAs [J].

Globisch, B. ;

Dietz, R. J. B. ;

Stanze, D. ;

Goebel, T. ;

Schell, M. .

APPLIED PHYSICS LETTERS, 2014, 104 (17)

[5] Markets, Availability, Notice, and Technical Performance of Terahertz Systems: Historic Development, Present, and Trends [J].

Hochrein, Thomas .

JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES, 2015, 36 (03) :235-254

[6] Novel detectors for traceable THz power measurements [J].

Mueller, Ralf ;

Bohmeyer, Werner ;

Kehrt, Mathias ;

Lange, Karsten ;

Monte, Christian ;

Steiger, Andreas .

JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES, 2014, 35 (08) :659-670

[7] Traceable terahertz power measurement from 1 THz to 5 THz [J].

Steiger, Andreas ;

Kehrt, Mathias ;

Monte, Christian ;

Mueller, Ralf .

OPTICS EXPRESS, 2013, 21 (12) :14466-14473

[8] Cutting-edge terahertz technology [J].

Tonouchi, Masayoshi .

NATURE PHOTONICS, 2007, 1 (02) :97-105

[9] Dynamics of the Stratification Process in Drying Colloidal Dispersions Studied by Terahertz Time-Domain Spectroscopy [J].

van Mechelen, J. L. M. .

LANGMUIR, 2014, 30 (43) :12748-12754

[10] Terahertz-time domain spectrometer with 90 dB peak dynamic range [J].

Vieweg, N. ;

Rettich, F. ;

Deninger, A. ;

Roehle, H. ;

Dietz, R. ;

Goebel, T. ;

Schell, M. .

JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES, 2014, 35 (10) :823-832