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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 23, Iss. 12 — Jun. 15, 1984
  • pp: 1975–1979

Multiphoton interactions in rutile

Gerald A. Royce and Richard B. Kay  »View Author Affiliations


Applied Optics, Vol. 23, Issue 12, pp. 1975-1979 (1984)
http://dx.doi.org/10.1364/AO.23.001975


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Abstract

Laser-induced photoluminescence and photoconductivity in rutile crystal are described. Nd:YAG laser photons were employed which have energies of 1.16 eV (1.06 μm). This energy is just slightly more than ⅓ of the TiO2 band gap. Intensities between 105 and 106 W/cm2 were employed. The photoconductivity is shown to be produced by competing single- and two-photon events. The first-order and second-order photoconductivity cross sections are found to be 3.6 × 10−26 cm2 and 1.54 × 10−50 cm4 sec, respectively. A thermoluminescence study revealed traps with thermal ionization energies between 0.4 and 0.9 eV below the conduction band. Traps with photoionization energies ~1 and ~2 eV below the conduction band are believed to be responsible for the observed results and may or may not be due to alumina impurities known to exist in the samples.

© 1984 Optical Society of America

History
Original Manuscript: June 1, 1983
Published: June 15, 1984

Citation
Gerald A. Royce and Richard B. Kay, "Multiphoton interactions in rutile," Appl. Opt. 23, 1975-1979 (1984)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-23-12-1975


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References

  1. D. C. Cronemeyer, “Electrical and Optical Properties of Rutile Single Crystals,” Phys. Rev. 87, 876 (1952). [CrossRef]
  2. A. K. Ghosh, F. G. Wakim, R. R. Addiss, “Photoelectronic Processes in Rutile,” Phys. Rev. 184, 979 (1969). [CrossRef]
  3. D. E. Gray, Ed., American Institute of Physics Handbook (McGraw-Hill, New York, 1972), pp. 8–51.
  4. I. M. Catalano, A. Cingolani, A. Minafra, “Multiphoton Transitions in Ionic Crystals,” Phys. Rev. B 5, 1629 (1972). [CrossRef]
  5. D. D. Venable, “Multiphoton Excitation in Solids,” Doctoral Dissertation, The American U. (1974).
  6. K. Mizushima, M. Tanaka, A. Asai, S. Iida, J. E. Goodenough, “Impurity Levels of Iron-Group Ions in TiO2 (II),” J. Phys. Chem. Solids 40, 1129 (1979). [CrossRef]
  7. D. Curie, Luminescence in Crystals (Wiley, New York, 1963), p. 161.
  8. R. R. Addiss, A. K. Ghosh, F. G. Wakim, “Thermally Stimulated Currents and Luminescence in Rutile (TiO2),” Appl. Phys. Lett. 12, 397 (1968). [CrossRef]

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