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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 6 — Jun. 1, 2012
  • pp: 1406–1412

Terahertz magneto-optical polarization modulation spectroscopy

Deepu K. George, Andreas V. Stier, Chase T. Ellis, Bruce D. McCombe, John Černe, and Andrea G. Markelz  »View Author Affiliations


JOSA B, Vol. 29, Issue 6, pp. 1406-1412 (2012)
http://dx.doi.org/10.1364/JOSAB.29.001406


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Abstract

We report the development of new terahertz (THz) techniques for rapidly measuring 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 (<1mrad) narrowband rotation measurements with a cw optically pumped molecular gas laser, and, by combining the distinct advantages of THz time domain spectroscopy and polarization modulation techniques, we have demonstrated rapid broadband rotation measurements to <5mrad precision.

© 2012 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.2130) Instrumentation, measurement, and metrology : Ellipsometry and polarimetry
(160.3820) Materials : Magneto-optical materials
(160.4760) Materials : Optical properties
(300.0300) Spectroscopy : Spectroscopy
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: January 12, 2012
Manuscript Accepted: March 2, 2012
Published: May 25, 2012

Citation
Deepu K. George, Andreas V. Stier, Chase T. Ellis, Bruce D. McCombe, John Černe, and Andrea G. Markelz, "Terahertz magneto-optical polarization modulation spectroscopy," J. Opt. Soc. Am. B 29, 1406-1412 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-6-1406

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