EFFECT OF A STATIC ELECTRIC-FIELD ON THE OPTICAL-SPECTRUM OF A QUANTUM-DOT

Authors
ZHOU YC HE GP WANG ZM
Citation
Yc. Zhou et al., EFFECT OF A STATIC ELECTRIC-FIELD ON THE OPTICAL-SPECTRUM OF A QUANTUM-DOT, Physics letters. A, 229(6), 1997, pp. 379-386
Citations number
17
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
229
Issue
6
Year of publication
1997
Pages
379 - 386
Database
ISI
SICI code
0375-9601(1997)229:6<379:EOASEO>2.0.ZU;2-A
Abstract
The energy levels and the optical absorption of a circular quantum dot with hard walls are studied in the presence of a static electric fiel d. The results are compared with the case of soft-wall confinement. Ca lculations show that: (i) the structures of the energy levels of the t wo cases are different, therefore their absorption varies accordingly; (ii) the nonlinear term has a significant contribution to the total o ptical absorption coefficient. (C) Elsevier Science B.V.