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A study on the optical nonlinearity due to the Z3and Z1,2excitons of CuCl by the reflected four-wave mixed light generation

Authors
Journal
Optics Communications
0030-4018
Publisher
Elsevier
Publication Date
Volume
50
Issue
1
Identifiers
DOI: 10.1016/0030-4018(84)90007-5
Disciplines
  • Physics

Abstract

Abstract We have demonstrated the generation of the reflected four-wave mixed light in the energy region from 3.185 eV to 3.320 eV including the highly absorptive region due to the Z 3 and Z 1,2 exciton bands of CuCl at 1.6 K. The mixed light signal is concluded to be due to the one-photon resonant contribution of the respective exciton level, from its polarization characteristics. The corresponding third order non-linear susceptibility is estimated from the data by the correction with the Fresnel factors which are calculated on the basis of the Pekar's Additional Boundary Condition.

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