CONFINED EXCITONS IN SEMICONDUCTORS - CORRELATION BETWEEN BINDING-ENERGY AND SPECTRAL ABSORPTION SHAPE

被引：54

作者：

LEFEBVRE, P ^{[1
]}

CHRISTOL, P ^{[1
]}

MATHIEU, H ^{[1
]}

GLUTSCH, S ^{[1
]}

机构：

[1] LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.52.5756

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate excitonic absorption spectra in several types of semiconductor nanostructures by using an original formalism involving fractional-dimensional spaces. This compact, analytical formulation predicts a surprising one-to-one mapping between the enhanced exciton Rydberg and the shape of the spectrum, whatever the physical origin of the confinement. by all-numerical calculation of the optical susceptibility we check that different systems with identical exciton Rydbergs exhibit nearly identical spectra, strikingly close to those given by the fractional-dimensional approach.

引用

页码：5756 / 5759

页数：4

共 12 条

[1] INFLUENCE OF EXTERNAL ELECTRIC AND MAGNETIC-FIELDS ON THE EXCITONIC ABSORPTION-SPECTRA OF QUANTUM-WELL WIRES [J].

BENNER, S ;

HAUG, H .

PHYSICAL REVIEW B, 1993, 47 (23) :15750-15754

[2] A SINGLE EQUATION DESCRIBES EXCITONIC ABSORPTION-SPECTRA IN ALL QUANTUM-SIZED SEMICONDUCTORS [J].

CHRISTOL, P ;

LEFEBVRE, P ;

MATHIEU, H .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1994, 30 (10) :2287-2292

[3] EXCITON GREENS-FUNCTION APPROACH TO OPTICAL-ABSORPTION IN A QUANTUM-WELL WITH AN APPLIED ELECTRIC-FIELD [J].

CHUANG, SL ;

SCHMITTRINK, S ;

MILLER, DAB ;

CHEMLA, DS .

PHYSICAL REVIEW B, 1991, 43 (02) :1500-1509

[4] INTENSITY OF OPTICAL ABSORPTION BY EXCITONS [J].

ELLIOTT, RJ .

PHYSICAL REVIEW, 1957, 108 (06) :1384-1389

[5] FANO RESONANCES DUE TO COUPLED MAGNETOEXCITON AND CONTINUUM STATES IN BULK SEMICONDUCTORS [J].

GLUTSCH, S ;

SIEGNER, U ;

MYCEK, MA ;

CHEMLA, DS .

PHYSICAL REVIEW B, 1994, 50 (23) :17009-17017

[6] FANO RESONANCES IN THE OPTICAL-SPECTRA OF SEMICONDUCTOR QUANTUM STRUCTURES [J].

GLUTSCH, S ;

CHEMLA, DS ;

BECHSTEDT, F .

PHYSICAL REVIEW B, 1995, 51 (23) :16885-16890

[7] INTERPLAY OF COULOMB ATTRACTION AND SPATIAL CONFINEMENT IN THE OPTICAL SUSCEPTIBILITY OF QUANTUM WIRES [J].

GLUTSCH, S ;

BECHSTEDT, F .

PHYSICAL REVIEW B, 1993, 47 (11) :6385-6389

[8] EXCITONS IN ANISOTROPIC SOLIDS - THE MODEL OF FRACTIONAL-DIMENSIONAL SPACE [J].

HE, XF .

PHYSICAL REVIEW B, 1991, 43 (03) :2063-2069

[9] UNIFIED FORMULATION OF EXCITONIC ABSORPTION-SPECTRA OF SEMICONDUCTOR QUANTUM-WELLS, SUPERLATTICES, AND QUANTUM WIRES [J].

LEFEBVRE, P ;

CHRISTOL, P ;

MATHIEU, H .

PHYSICAL REVIEW B, 1993, 48 (23) :17308-17315

[10] GENERAL FORMALISM FOR EXCITONIC ABSORPTION EDGES IN CONFINED SYSTEMS WITH ARBITRARY DIMENSIONALITY [J].

LEFEBVRE, P ;

CHRISTOL, P ;

MATHIEU, H .

JOURNAL DE PHYSIQUE IV, 1993, 3 (C5) :377-380

← 1 2 →