Relationship between spin relaxation and excitonic nonlinearity in an organic-inorganic hybrid quantum-well material

Author

Toda, M. ; Umeda, K. ; Yajima, C. ; Arai, Y. ; Kunugita, H. ; Ema, K.

Author_Institution

Dept. of Phys., Sophia Univ., Tokyo, Japan

fYear

2005

fDate

12-17 June 2005

Firstpage

99

Abstract

This study analyzed the influence of the spin relaxation on the excitonic nonlinearity using a 7-level model, and found that it is important to clarify whether coherence is conserved in spin relaxation process or not. If the coherence is perfectly conserved, the nonlinearity will not have size dependence. On the other hand, if the coherence is not conserved, the nonlinearity has coherent size dependence. In order to clarify this point three-pulse four-wave mixing with several polarization configurations at the exciton resonance was performed.

Keywords

excitons; light coherence; light polarisation; multiwave mixing; optical materials; organic-inorganic hybrid materials; quantum wells; 7-level model; coherence conservation; coherent size dependence; exciton resonance; excitonic nonlinearity; organic-inorganic hybrid material; polarization configurations; quantum-well material; spin relaxation; three-pulse four-wave mixing; Coherence; Delay effects; Dielectric materials; Excitons; Optical materials; Organic materials; Polarization; Quantum wells; Resonance; Semiconductor materials;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference, 2005. EQEC '05. European

Print_ISBN

0-7803-8973-5

Type

conf

DOI

10.1109/EQEC.2005.1567270

Filename

1567270