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High-speed terahertz time-domain spectroscopy of cyclotron resonance in pulsed magnetic field

 
: Molter, D.; Ellrich, F.; Weinland, T.; George, S.; Goiran, M.; Keilmann, F.; Beigang, R.; Leotin, J.

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Postprint (1.1 MByte; PDF; )

Optics Express 18 (2010), Nr.25, S.26163-26168
ISSN: 1094-4087
Englisch
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer IPM ()
spectroscopy; THz; time resolved

Abstract
We present time-resolved cyclotron resonance spectra of holes in p-Ge measured during single magnetic field pulses by using a rapid-scanning, fiber-coupled terahertz time-domain spectroscopy system. The key component of the system is a rotating monolithic delay line featuring four helicoid mirror surfaces. It allows measurements of THz spectra at up to 250 Hz repetition rate. Here we show results taken at 150 Hz. In a single 900 ms measurement 135 cyclotron resonance spectra were recorded that fully agree with what is expected from literature.

: http://publica.fraunhofer.de/dokumente/N-158277.html