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Resonant Brillouin Scattering in HgI 2 Investigated by Acoustic Domain Injection Method
Author(s) -
Itoh Y.,
Hamaguchi C.
Publication year - 1983
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221170235
Subject(s) - brillouin scattering , scattering , brillouin zone , optics , wavelength , phonon , absorption (acoustics) , materials science , absorption edge , transverse plane , physics , condensed matter physics , optical fiber , band gap , structural engineering , engineering
Resonant Brillouin scattering by the transverse acoustic phonons is investigated for the first time in red HgI 2 single crystal at room temperature by using the acoustic domain injection method. The measured results in the spectral region 579 to 800 nm show a non‐dispersive feature at the longer wavelength region and a decrease in the region very close to the fundamental absorption edge. The analysis based on the resonant Brillouin scattering theory and piezobirefringence theory shows excellent agreement with the present observation and predicts a resonant cancellation of the scattering cross section at 574 nm.