Spectral and spatial properties of the Biexciton two-photon resonance in CuCl

Nobukata Nagasawa; Tadashi Hatano; Masahiro Hasuo

doi:10.1117/12.20328

1 August 1990 Spectral and spatial properties of the Biexciton two-photon resonance in CuCl

Nobukata Nagasawa, Tadashi Hatano, Masahiro Hasuo

Proceedings Volume 1268, Applications of Ultrashort Laser Pulses in Science and Technology; (1990) https://doi.org/10.1117/12.20328
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

Abstract

We study new structures peaked at the giant two-photon absorption (GTA) of biexcitons and peaked at h1P in the exciton region which appear in the excitation spectrum for the emission at h w of the biexciton origin in CuC1 at 2 K in the excitation photon density of ' 5Mw/cm2. An energy relation, thw1P . + ALT is obtained, where b and ALT are the binding energy of a biexciton and the L-T splitting energy of an exciton, respectively. Existence of a complex of biexciton-polariton or triexciton is implied as an interpretation of this phenomenum. Discussion is presented in relation to the broad band at GTA.

Citation Download Citation

Nobukata Nagasawa, Tadashi Hatano, and Masahiro Hasuo "Spectral and spatial properties of the Biexciton two-photon resonance in CuCl", Proc. SPIE 1268, Applications of Ultrashort Laser Pulses in Science and Technology, (1 August 1990); https://doi.org/10.1117/12.20328

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