OPTICALLY DETECTED ELECTROPHONON RESONANCE AND LINEWIDTHS IN TRIANGULAR QUANTUM WELLS

In  the present paper,  we  study  the linear optical  absorption  power  in  triangular  quantum  wells (QW), subjected to a laser field  when  electrons  are scattered  with  longitudinal  optical  phonons  (LO phonons). The analytic expressions are obtained for optical absorption power via electr...

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Published inTạp chí khoa học. Chuyên san khoa học tự nhiên Vol. 127; no. 1A; p. 119
Main Authors Vinh, Pham Tuan, Dinh, Le, Tung, Luong Van
Format Journal Article
LanguageEnglish
Published 06.08.2018
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Summary:In  the present paper,  we  study  the linear optical  absorption  power  in  triangular  quantum  wells (QW), subjected to a laser field  when  electrons  are scattered  with  longitudinal  optical  phonons  (LO phonons). The analytic expressions are obtained for optical absorption power via electron-LO phonon scattering . The linear optically detected electrophonon resonance (ODEPR) effect in a specific GaAs/AlAs quantum well with triangular potential is investigated.  Conditions for the ODEPR are determined based on the energy conservation law. From the curves expressing the dependence of the absorption power on photon energy we find the ODEPR-linewidths as profiles of the curves. Computational results show that the ODEPR-linewidths increase with temperature and decrease with electric field.
ISSN:1859-1388
2615-9678
DOI:10.26459/hueuni-jns.v127i1A.4668