Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Volume 29, Issue 6, Pages 1406-1412Publisher
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.29.001406
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Funding
- National Science Foundation [MRI-R2 DBI2959989, NSF-DMR1006078, NSF-MWN1008138]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1008138] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1006078] Funding Source: National Science Foundation
- Div Of Biological Infrastructure
- Direct For Biological Sciences [0959989] Funding Source: National Science Foundation
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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 (< 1 mrad) 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 < 5 mrad precision. (C) 2012 Optical Society of America
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