Terahertz magneto-optical polarization modulation spectroscopy
نویسندگان
چکیده
منابع مشابه
Terahertz magneto-optical polarization modulation spectroscopy
We report the development of new terahertz (THz) techniques for rapidlymeasuring the complex Faraday angle in systems with broken time-reversal symmetry. Using the cyclotron resonance of a GaAs two-dimensional electron gas in a magnetic field, we have tested the performance of the techniques. We have made polarization modulation, high sensitivity (<1 mrad) narrowband rotation measurements with ...
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The terahertz frequency range, 0.1-10 THz, is one of the richest frequency ranges in condensed matter spectroscopy. Many important excitations and dynamical phenomena occur in this range, including superconducting gaps, protein conformational modes, phonons, and plasmons, just to name a few. Spectroscopic studies in this region provide valuable insights into the quantum states and dynamics of c...
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We present a novel approach for terahertz time-domain spectroscopy of magneto-optic phenomena. The setup used in this work combines a tabletop pulsed magnet and a standard terahertz time-domain spectroscopy system. The approach is based on repetitive operation of the pulsed magnet and step-wise increment of the delay time of the time-domain spectroscopy system. The method is demonstrated by plo...
متن کاملImproved measurement of polarization state in terahertz polarization spectroscopy.
A calibration scheme is presented for improved polarization state measurement of terahertz pulses. In this scheme the polarization response of a two-contact terahertz photoconductive detector is accurately measured, and is used to correct for the impact of the nonidealities of the detector. Experimental results show excellent subdegree angular accuracy and at least 60% error reduction with this...
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ژورنال
عنوان ژورنال: Journal of the Optical Society of America B
سال: 2012
ISSN: 0740-3224,1520-8540
DOI: 10.1364/josab.29.001406