Role of bandtail states in laser cooling of semiconductors

被引：46

作者：

Khurgin, Jacob B. ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Elect & Comp Engn, Baltimore, MD 21218 USA

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.77.235206

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A rigorous theory of phonon-assisted transitions near the direct band gap of semiconductors is developed and applied to the case of laser refrigeration. The theory shows that phonon-assisted absorption can be adequately described as state filling and that it is this state filling that limits the efficiency of laser cooling.

引用

页数：9

共 26 条

[1] INTERPRETATION OF URBACHS RULE [J].

DEXTER, DL .

PHYSICAL REVIEW LETTERS, 1967, 19 (24) :1383-+

[2] THEORY OF EXPONENTIAL ABSORPTION EDGES IN IONIC AND COVALENT SOLIDS [J].

DOW, JD ;

REDFIELD, D .

PHYSICAL REVIEW LETTERS, 1971, 26 (13) :762-&

[3] TOWARD A UNIFIED THEORY OF URBACHS RULE AND EXPONENTIAL ABSORPTION EDGES [J].

DOW, JD ;

REDFIELD, D .

PHYSICAL REVIEW B-SOLID STATE, 1972, 5 (02) :594-+

[4] ABSORPTION IN ELECTRON-OPTICAL-PHONON SYSTEM [J].

DUNN, D .

PHYSICAL REVIEW, 1968, 166 (03) :822-&

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

ELLIOTT, RJ .

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

[6] OBSERVATION OF LASER-INDUCED FLUORESCENT COOLING OF A SOLID [J].

EPSTEIN, RI ;

BUCHWALD, MI ;

EDWARDS, BC ;

GOSNELL, TR ;

MUNGAN, CE .

NATURE, 1995, 377 (6549) :500-503

[7] On the origin of anti-Stokes laser-induced cooling of Yb3+-doped glass [J].

Fernández, J ;

Mendioroz, A ;

García, AJ ;

Balda, R ;

Adam, JL ;

Arriandiaga, MA .

OPTICAL MATERIALS, 2001, 16 (1-2) :173-179

[8] Anti-Stokes laser cooling in bulk erbium-doped materials [J].

Fernandez, Joaquin ;

Garcia-Adeva, Angel J. ;

Balda, Rolindes .

PHYSICAL REVIEW LETTERS, 2006, 97 (03)

[9] Photoluminescence study of exciton-optical phonon scattering in bulk GaAs and GaAs quantum wells [J].

Gopal, AV ;

Kumar, R ;

Vengurlekar, AS ;

Bosacchi, A ;

Franchi, S ;

Pfeiffer, LN .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (04) :1858-1862

[10] IMPURITY-BAND TAILS IN HIGH-DENSITY LIMIT .I. MINIMUM COUNTING METHODS [J].

HALPERIN, BI ;

LAX, M .

PHYSICAL REVIEW, 1966, 148 (02) :722-+

← 1 2 3 →