Temporal Characteristics of Afterglow in Artificial Opal

Authors

  • M. V. Vasnetsov Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • V. Yu. Bazhenov Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • V. V. Ponevchinsky Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • D. O. Plutenko Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • A. D. Kudryavtseva P.N. Lebedev Institute, Russian Academy of Sciences
  • N. V. Tcherniega P.N. Lebedev Institute, Russian Academy of Sciences

DOI:

https://doi.org/10.15407/ujpe61.09.0795

Keywords:

artificial opal, afterglow, nanocavity lasing

Abstract

We report the results of an experimental study of the temporal response of the artificial opal luminescence excited by UV pulses from a nitrogen laser at room temperature, liquid-nitrogen temperature, and in the intermediate range. While the response time does not exceed 15 ns at room temperature, the afterglow at liquid-nitrogen temperature was detected with a decay time of about 700 ms. We have revealed that the afterglow appears suddenly with just millisecond-range duration at a definite temperature of 130±5 K. The temperature dependence of the afterglow is of importance for the explanation of surprising effects of the stimulated emission in a single nano-sized SiO2 globule and the second harmonic generation in the material at liquid-nitrogen temperature.

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Published

2019-01-05

How to Cite

Vasnetsov, M. V., Bazhenov, V. Y., Ponevchinsky, V. V., Plutenko, D. O., Kudryavtseva, A. D., & Tcherniega, N. V. (2019). Temporal Characteristics of Afterglow in Artificial Opal. Ukrainian Journal of Physics, 61(9), 795. https://doi.org/10.15407/ujpe61.09.0795

Issue

Section

Optics, lasers, and quantum electronics