Measurement of the d(36) coefficient of mercury cadmium telluride by reflection second harmonic generation

A.W. Wark, D. Pugh, L.E.A. Berlouis, F.R. Cruickshank, P.F. Brevet

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Abstract

The second order nonlinear coefficient (d36) of the narrow band gap semiconductor, mercury cadmium telluride (MCT), is measured. Because MCT is strongly absorbing at a 1.06 μm wavelength, the measurement was performed by comparing the second harmonic intensity reflected from the material surface to the second harmonic intensity measured for a quartz sample in transmission. The analysis depends on the derivation of comparable expressions for the reflected and transmitted intensities. Using this approach a value of d36=350±40 pm/V is obtained, a value much larger than those reported for similar zinc-blende type materials. The large magnitude of the MCT d36 is attributed to an electronic resonance enhancement.
Original languageEnglish
Pages (from-to)306-310
Number of pages5
JournalJournal of Applied Physics
Volume89
Issue number1
DOIs
Publication statusPublished - Jan 2001

Keywords

  • optical harmonic generation
  • II-VI semiconductors
  • cadmium compounds
  • mercury compounds
  • narrow band gap semiconductors
  • measurement of the d(36) coefficient
  • mercury cadmium telluride
  • second harmonic generation

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