Direct measurement of cyclotron coherence times of high-mobility two-dimensional electron gases

doi:10.1364/OE.18.012354

Direct measurement of cyclotron coherence times of high-mobility two-dimensional electron gases

X. Wang, D. J. Hilton, J. L. Reno, D. M. Mittleman, and J. Kono »View Author Affiliations

Optics Express, Vol. 18, Issue 12, pp. 12354-12361 (2010)
http://dx.doi.org/10.1364/OE.18.012354

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Abstract

We have observed long-lived (~30 ps) coherent oscillations of charge carriers due to cyclotron resonance (CR) in high-mobility two-dimensional electrons in GaAs in perpendicular magnetic fields using time-domain terahertz spectroscopy. The observed coherent oscillations were fitted well by sinusoids with exponentially-decaying amplitudes, through which we were able to provide direct and precise measures for the decay times and oscillation frequencies simultaneously. This method thus overcomes the CR saturation effect, which is known to prevent determination of true CR linewidths in high-mobility electron systems using Fourier-transform infrared spectroscopy.

OCIS Codes
(320.7150) Ultrafast optics : Ultrafast spectroscopy
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Spectroscopy

History
Original Manuscript: February 17, 2010
Revised Manuscript: April 16, 2010
Manuscript Accepted: May 14, 2010
Published: May 26, 2010

Citation
X. Wang, D. J. Hilton, J. L. Reno, D. M. Mittleman, and J. Kono, "Direct measurement of cyclotron coherence times of high-mobility two-dimensional electron gases," Opt. Express 18, 12354-12361 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-12-12354

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References

A. Petrou, and B. D. McCombe, “Magnetospectroscopy of confined semiconductor systems,” in Landau Level Spectroscopy, Volume 27.2 of Modern Problems in Condensed Matter Sciences, G. Landwehr and E. I. Rashba, eds. (Elsevier Science, Amsterdam, 1991), pp. 679–775.
R. J. Nicholas, “Intraband optical properties of low-dimensional semiconductor systems,” in Handbook on Semiconductors, Vol. 2 “Optical Properties”, M. Balkanski, ed. (Elsevier, Amsterdam, 1994), pp. 385–461.
J. Kono, “Cyclotron resonance,” in Methods in Materials Research, E. N. Kaufmann, R. Abbaschian, A. Bocarsly, C.-L. Chien, D. Dollimore, B. Doyle, A. Goldman, R. Gronsky, S. Pearton, and J. Sanchez, eds. (John Wiley & Sons, New York, 2001), chap. 9b.2.
J. Kono, and N. Miura, “Cyclotron resonance in high magnetic fields,” in High Magnetic Fields: Science and Technology, Volume III, N. Miura and F. Herlach, eds. (World Scientific, Singapore, 2006), pp. 61–90.
M. J. Chou, and D. C. Tsui, “Cyclotron resonance of high-mobility electrons at extremely low densities,” Phys. Rev. B 37, 848–854 (1988). [CrossRef]
S. A. Studenikin, M. Potemski, A. Sachrajda, M. Hillke, L. N. Pfeiffer, and K. W. West, “Microwave-induced resistance oscillations on a high-mobility two-dimensional electron gas: exact waveform, absorption/reflection and temperature damping,” Phys. Rev. B 71, 245313–245322 (2005). [CrossRef]
S. A. Mikhailov, “Microwave-induced magnetotransport phenomena in two-dimensional electron systems: important of electodynamic effects,” Phys. Rev. B 70, 165311–165315 (2004). [CrossRef]
X. Wang, D. J. Hilton, L. Ren, D. M. Mittleman, J. Kono, and J. L. Reno, “Terahertz time-domain magnetospectroscopy of a high-mobility two-dimensional electron gas,” Opt. Lett. 32, 1845–1847 (2007). [CrossRef] [PubMed]
X. Wang, A. A. Belyanin, S. A. Crooker, D. M. Mittleman, and J. Kono, “Interference-induced terahertz transparency in a semiconductor magneto-plasma,” Nat. Phys. 6, 126–130 (2010). [CrossRef]
D. Grischkowsky, S. Keiding, M. V. Exter, and C. Fattinger, “Far-infrared time-domain spectroscopy with terahertz beams of dielectrics and semiconductors,” J. Opt. Soc. Am. B 7, 2006–2015 (1990). [CrossRef]
M. C. Nuss, and J. Orenstein, “Terahertz time-domain spectroscopy,” in Millimeter and Submillimeter Wave Spectroscopy of Solids, G. Grüner, ed. (Springer-Verlag, Berlin, 1998), pp. 7–50.
Z. Jiang, and X.-C. Zhang, “Free-space electro-optic techniques,” in Sensing with Terahertz Radiation, D. Mittleman, ed. (Springer-Verlag, Berlin, 2003), pp. 155–192.

J. Opt. Soc. Am. B

D. Grischkowsky, S. Keiding, M. V. Exter, and C. Fattinger, “Far-infrared time-domain spectroscopy with terahertz beams of dielectrics and semiconductors,” J. Opt. Soc. Am. B 7, 2006–2015 (1990). [CrossRef]

Nat. Phys.

X. Wang, A. A. Belyanin, S. A. Crooker, D. M. Mittleman, and J. Kono, “Interference-induced terahertz transparency in a semiconductor magneto-plasma,” Nat. Phys. 6, 126–130 (2010). [CrossRef]

Opt. Lett.

X. Wang, D. J. Hilton, L. Ren, D. M. Mittleman, J. Kono, and J. L. Reno, “Terahertz time-domain magnetospectroscopy of a high-mobility two-dimensional electron gas,” Opt. Lett. 32, 1845–1847 (2007). [CrossRef] [PubMed]

Phys. Rev. B

M. J. Chou, and D. C. Tsui, “Cyclotron resonance of high-mobility electrons at extremely low densities,” Phys. Rev. B 37, 848–854 (1988). [CrossRef]
S. A. Studenikin, M. Potemski, A. Sachrajda, M. Hillke, L. N. Pfeiffer, and K. W. West, “Microwave-induced resistance oscillations on a high-mobility two-dimensional electron gas: exact waveform, absorption/reflection and temperature damping,” Phys. Rev. B 71, 245313–245322 (2005). [CrossRef]
S. A. Mikhailov, “Microwave-induced magnetotransport phenomena in two-dimensional electron systems: important of electodynamic effects,” Phys. Rev. B 70, 165311–165315 (2004). [CrossRef]

Other

A. Petrou, and B. D. McCombe, “Magnetospectroscopy of confined semiconductor systems,” in Landau Level Spectroscopy, Volume 27.2 of Modern Problems in Condensed Matter Sciences, G. Landwehr and E. I. Rashba, eds. (Elsevier Science, Amsterdam, 1991), pp. 679–775.
R. J. Nicholas, “Intraband optical properties of low-dimensional semiconductor systems,” in Handbook on Semiconductors, Vol. 2 “Optical Properties”, M. Balkanski, ed. (Elsevier, Amsterdam, 1994), pp. 385–461.
J. Kono, “Cyclotron resonance,” in Methods in Materials Research, E. N. Kaufmann, R. Abbaschian, A. Bocarsly, C.-L. Chien, D. Dollimore, B. Doyle, A. Goldman, R. Gronsky, S. Pearton, and J. Sanchez, eds. (John Wiley & Sons, New York, 2001), chap. 9b.2.
J. Kono, and N. Miura, “Cyclotron resonance in high magnetic fields,” in High Magnetic Fields: Science and Technology, Volume III, N. Miura and F. Herlach, eds. (World Scientific, Singapore, 2006), pp. 61–90.
M. C. Nuss, and J. Orenstein, “Terahertz time-domain spectroscopy,” in Millimeter and Submillimeter Wave Spectroscopy of Solids, G. Grüner, ed. (Springer-Verlag, Berlin, 1998), pp. 7–50.
Z. Jiang, and X.-C. Zhang, “Free-space electro-optic techniques,” in Sensing with Terahertz Radiation, D. Mittleman, ed. (Springer-Verlag, Berlin, 2003), pp. 155–192.

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