Terahertz Magneto Optical Polarization Modulation Spectroscopy
Abstract
We report the development of new terahertz 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 as a system for demonstration of performance. We have made polarization modulation, high sensitivity (< 1 mrad) narrow band rotation measurements with a CW optically pumped molecular gas laser, and by combining the distinct advantages of terahertz (THz) time domain spectroscopy and polarization modulation techniques, we have demonstrated rapid broadband rotation measurements to < 5 mrad precision.
Cite
@article{arxiv.1201.2701,
title = {Terahertz Magneto Optical Polarization Modulation Spectroscopy},
author = {D. K. George and A. V. Stier and C. T. Ellis and B. D. McCombe and J. Černe and A. G. Markelz},
journal= {arXiv preprint arXiv:1201.2701},
year = {2015}
}
Comments
25 pages including 7 figures, introduces use of rotating polarizer with THz TDS for Complex Faraday Angle determination