International Journal of Terahertz Science and Technology
Vol.2, No.3, September 2009. PP.75-104 (3)
date2009-09-28 13:54:04 Click No.5215

TST, Vol. 2, No. 3, PP. 75-89

Fourier Transform Spectroscopy of Solids at Terahertz Frequencies

T J Parker
Physics Centre, University of Essex, Colchester, Essex CO4 3SQ, UK
E-mail:
etpkr@yahoo.co.uk

Abstract: We briefly review the techniques of dispersive Fourier transform spectroscopy (DFTS), polarised oblique incidence reflection spectroscopy and attenuated total reflection (ATR) spectroscopy, and discuss applications of these techniques to a variety of solids, including alkali halide crystals, pseudo-displacive ferroelectrics, and bulk and low-dimensional semiconductors.

Keywords: DFTS, ATR, polarised oblique incidence reflectivity, ionic solids, ferroelectrics, semiconductors

doi: 10.11906/TST.075-089.2009.09.09

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TST, Vol. 2, No. 3, PP. 90-101

Galore New Applications of Terahertz Science and Technology

Masayoshi Tonouchi
Institute of Laser Engineering, Osaka University2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
Email:
tonouchi@ile.osaka-u.ac.jp

Abstract: Terahertz science and technology is now receiving increasing interest around the world, and materials, devices and systems exploiting this waveband are set to play an important role in a very diverse range of applications. We give an overview of the current status of the technology and its future prospects.

Keywords: THz sources and detectors, THz-time-domain-spectroscopy, THz new applications, future prospect of THz technology

doi: 10.11906/TST.090-101.2009.09.10

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TST, Vol. 2, No. 3, PP. 102-104

Frequency Response of Voltage-modulated Gyrotron

M.I. Petelin, A.S. Sedov
Institute of Applied Physics, RAS, Nizhny Novgorod, Russia

Abstract: For the gyrotron with the triode-gun and the depressed-collector, it is shown that modulation of voltages can be coordinated so that a relatively large frequency shift will be followed with only a small change of the output power. The modulation method is applicable to systems where the fast discrete electron cyclotron wave beam switching will be used in tokamaks to suppress hydrodynamic plasma instabilities.

Keywords: Gyrotron, Tokamaks, voltage-modulated

doi: 10.11906/TST.102-104.2009.09.11

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