Open AccessCompetition between stimulated Brillouin scattering and two-photon absorption in dispersed boron nitride
Author(s) -
I. M. Kislyakov,
JeanMichel Nunzi,
Xiaoyan Zhang,
Yafeng Xie,
Vladimir N. Bocharov,
Jun Wang
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.011029
Subject(s) - materials science , brillouin scattering , absorption (acoustics) , attenuation coefficient , optics , scattering , quenching (fluorescence) , suspension (topology) , two photon absorption , boron nitride , brillouin zone , optoelectronics , laser , fluorescence , nanotechnology , composite material , physics , mathematics , homotopy , pure mathematics
The design of transparent optical materials with stimulated Brillouin scattering (SBS) suppression is a topic of current interest. We measured two-photon absorption (2PA) cross-section σ 2PA and Brillouin gain factor g B of a suspension of hexagonal boron nitride (hBN) in N-methyl-2-pyrrolidone at the second harmonic of a Nd:YAG laser. SBS exhibits a significant quenching with hBN concentration, like previously observed in graphene suspension. The melting of hBN flakes due to a large 2PA and the related changes in the acoustic damping coefficient explain the quenching mechanism.