TITLE:
Proposed Model of Electric Field Effects in High-Purity GaAs at Room Temperature
AUTHORS:
Durga Prasad Sapkota, Madhu Sudan Kayastha, Makoto Takahashi, Koichi Wakita
KEYWORDS:
Optoelectronics, Electroabsorption, Modulator
JOURNAL NAME:
Optics and Photonics Journal,
Vol.4 No.5,
May
30,
2014
ABSTRACT: We have
proposed a new model for the calculation of excitonic electroabsorption based
on modified previously reported models for bulk structure. The excitonic
absorption spectra in high purity GaAs have been theoretically studied in the
presence of electric field at room temperature (RT). The Stark shift, linewidth
broadening of exciton and extinction ratio have been calculated as a function
of electric field. For the validity of our model we have compared with
experimental result.