JETP Letters

, Volume 101, Issue 2, pp 108–112 | Cite as

Spectral dependence of anisotropic picosecond photoconductivity in cubic semiconductors

  • Y. V. Malevich
  • R. Adomavičius
  • A. Krotkus
  • V. Pačebutas
  • V. L. Malevich


The “optical pump-terahertz probe” technique is used to investigate the spectral dependence of the anisotropic picosecond photoconductivity in an InGaAs cubic semiconductor excited by femtosecond laser pulses. It is shown that the anisotropy of the photoconductivity, which is caused by the alignment of the momenta of photoexcited charge carriers and by the energy dependence of the carrier mobility, depends nonmonotonically on the photon energy of the optical pump radiation and attains a maximum when the energy of pump photons is in the vicinity of the threshold for the onset of electron transitions to the subsidiary valleys in the conduction band.


JETP Letter Optical Pulse Femtosecond Laser Pulse Excitation Radiation Central Valley 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    V. D. Dymnikov, M. I. D’yakonov, and V. I. Perel’, Sov. Phys. JETP 44, 1252 (1976).ADSGoogle Scholar
  2. 2.
    D. N. Mirlin, in Optical Orientation, Ed. by B. P. Zakharchenya and F. Mejer (Elsevier, North-Holland, 1984; Nauka, Leningrad, 1989), p. 109.Google Scholar
  3. 3.
    V. L. Al’perovich, V. I. Belinicher, V. N. Novikov, and A. S. Terekhov, JETP Lett. 31, 546 (1980).ADSGoogle Scholar
  4. 4.
    V. I. Belinicher and V. N. Novikov, Sov. Phys. Semicond. 15, 1138 (1981).Google Scholar
  5. 5.
    Yu. V. Gulyaev, JETP Lett. 7, 132 (1968).ADSGoogle Scholar
  6. 6.
    Yu. S. Gal’pern and Sh. M. Kogan, Sov. Phys. JETP 29, 196 (1969).ADSGoogle Scholar
  7. 7.
    V. N. Genkin and P. M. Mednis, Sov. Phys. JETP 27, 609 (1968).ADSGoogle Scholar
  8. 8.
    Y.-Sh. Lee, Principles of Terahertz Science and Technology (Springer, Berlin, 2009).Google Scholar
  9. 9.
    V. L. Malevich, P. A. Ziaziulia, R. Adomavi ius, A. Krotkus, and Y. V. Malevich, J. Appl. Phys. 112, 073115 (2012).CrossRefADSGoogle Scholar
  10. 10.
    R. Adomavi ius, A. Urbanowicz, G. Molis, A. Krotkus, and E. Šatkovskis, Appl. Phys. Lett. 85, 2463 (2004).CrossRefADSGoogle Scholar
  11. 11.
    M. Reid, I. V. Gravetchi, and R. Fedosejevs, Phys. Rev. B 72, 035201 (2005).CrossRefADSGoogle Scholar
  12. 12.
    Y. V. Malevich, R. Adomaviçius, A. Krotkus, and V. L. Malevich, J. Appl. Phys. 115, 073103 (2014).CrossRefADSGoogle Scholar
  13. 13.
    J. B. Baxter and C. A. Schmuttenmaer, in Terahertz Spectroscopy: Principle and Applications, Ed. by S. L. Dexheimer (Taylor and Francis Group, London, 2008), p. 73.Google Scholar
  14. 14.
    R. Adomavi ius, G. Molis, A. Krotkus, and V. Sirutkaitis, Appl. Phys. Lett. 87, 261101 (2005).CrossRefADSGoogle Scholar

Copyright information

© Pleiades Publishing, Inc. 2015

Authors and Affiliations

  • Y. V. Malevich
    • 1
  • R. Adomavičius
    • 1
  • A. Krotkus
    • 1
  • V. Pačebutas
    • 1
  • V. L. Malevich
    • 2
    • 3
  1. 1.Center for Physical Sciences and TechnologyVilniusLithuania
  2. 2.Stepanov Institute of PhysicsNational Academy of Sciences of BelarusMinskBelarus
  3. 3.National Research University of Information Technologies, Mechanics, and OpticsSt. PetersburgRussia

Personalised recommendations