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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 28 — Dec. 31, 2012
  • pp: 29717–29726

Cyclotron resonance spectroscopy in a high mobility two dimensional electron gas using characteristic matrix methods

David J. Hilton  »View Author Affiliations


Optics Express, Vol. 20, Issue 28, pp. 29717-29726 (2012)
http://dx.doi.org/10.1364/OE.20.029717


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Abstract

We develop a new characteristic matrix-based method to analyze cyclotron resonance experiments in high mobility two-dimensional electron gas samples where direct interference between primary and satellite reflections has previously limited the frequency resolution. This model is used to simulate experimental data taken using terahertz time-domain spectroscopy that show multiple pulses from the substrate with a separation of 15 ps that directly interfere in the time-domain. We determine a cyclotron dephasing lifetime of 15.1±0.5 ps at 1.5 K and 5.0±0.5 ps at 75 K.

© 2012 OSA

OCIS Codes
(300.6495) Spectroscopy : Spectroscopy, teraherz
(070.7345) Fourier optics and signal processing : Wave propagation

ToC Category:
Spectroscopy

History
Original Manuscript: October 26, 2012
Revised Manuscript: December 11, 2012
Manuscript Accepted: December 11, 2012
Published: December 20, 2012

Citation
David J. Hilton, "Cyclotron resonance spectroscopy in a high mobility two dimensional electron gas using characteristic matrix methods," Opt. Express 20, 29717-29726 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-28-29717


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