Terahertz homodyne self-mixing transmission spectroscopy

Terahertz homodyne self-mixing transmission spectroscopy

A compact homodyne self-mixing terahertz spectroscopy concept is experimentally investigated and confirmed by calculations. This method provides amplitude and phase information of the terahertz radiation emitted by a photoconductive antenna in a transmission experiment where a rotating chopper wheel...

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Veröffentlicht in:Applied physics letters 2015-02, Vol.106 (6)
Hauptverfasser: Mohr, Till, Breuer, Stefan, Blömer, Dominik, Simonetta, Marcello, Patel, Sanketkumar, Schlosser, Malte, Deninger, Anselm, Birkl, Gerhard, Giuliani, Guido, Elsäßer, Wolfgang
Format: Artikel
Sprache:eng
Schlagworte:
ANTENNAS
Applied physics
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
EMISSION
FEEDBACK
FREQUENCY DEPENDENCE
MIRRORS
PHOTOCONDUCTIVITY
Polytetrafluoroethylene
REFRACTIVE INDEX
Refractivity
Spectroscopy
Spectrum analysis
TEFLON
THZ RANGE
TRANSMISSION
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Beschreibung
Zusammenfassung:A compact homodyne self-mixing terahertz spectroscopy concept is experimentally investigated and confirmed by calculations. This method provides amplitude and phase information of the terahertz radiation emitted by a photoconductive antenna in a transmission experiment where a rotating chopper wheel serves as a feedback mirror. As a proof-of-principle experiment the frequency-dependent refractive index of Teflon is measured.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4908059