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2005 | 107 | 2 | 271-274
Article title

Ultrahigh Frequency Components in the Hot Electron Photomagnetoelectric Response of Strongly Photoexcited Narrow-Gap Semiconductors

Content
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Languages of publication
EN
Abstracts
EN
A photomagnetoelectric effect has been investigated in semiconductors InAs and Cd_xHg_{1-x}Te (x=0.2 and 0.26) excited by Q-switched neodymium-YAG laser. The photomagnetoelectric signal undergos double-sign-inversion when the intensity of the exciting light pulses exceeds a critical value I_c=5×10^{24} photons/(cm^2 s) for InAs and (1-4)×10^{24} photons/(cm^2 s) for Cd_xHg_{1-x}Te samples. It is shown that a frequency spectrum of photomagnetoelectric response is broadened significantly in the region of high frequencies. In general three frequency bands were distinguished. From this investigation it follows that using laser pulses of a duration t_{opt} 1-10 ps the photomagnetoelectric signal in the terahertz range may be generated.
Keywords
Year
Volume
107
Issue
2
Pages
271-274
Physical description
Dates
published
2005-02
received
2004-08-22
References
  • 1. T.M. Rice, J.C. Hensel, T.G. Philips, S.A. Thomas, The Electron-Hole Liquid in Semiconductors, Acad. Press, New York 1977
  • 2. G.N. Galkin, Trudy FIAN, 28, 3, 1981 (in Russian)
  • 3. J. Shah, Solid St. Electron., 32, 1051, 1989
  • 4. E. Shatkovskis, Mater. Sci. Forum, 297-298, 11, 1999
  • 5. S.A. Lyon, J. Lumin., 35, 121, 1986
  • 6. E. Shatkovskii, A. Tamasevicius, Phys. Status Solidi A, 42, 111, 1977
  • 7. E. Shatkovskii, A. Tamasevicius, E. Matulionis, Phys. Status Solidi A, 51, K97, 1979
  • 8. L. Rabiner, B. Gould, Theory and Application of Digital Signal Processing, Prentice-Hall, Inc., Engelwood Cliffs (New Jersey) 1975
  • 9. R.J. Higgins, Amer. J. Phys., 44, 766, 1976
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv107n210kz
Identifiers
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