EXCITON ABSORPTION SATURATION BY PHASE-SPACE FILLING - INFLUENCE OF CARRIER TEMPERATURE AND DENSITY

被引：35

作者：

HUNSCHE, S ^{[1
]}

LEO, K ^{[1
]}

KURZ, H ^{[1
]}

KOHLER, K ^{[1
]}

机构：

[1] FRAUNHOFER INST APPL SOLID STATE PHYS,D-79108 FREIBURG,GERMANY

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.49.16565

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the temporal evolution and the density dependence of exciton bleaching in GaAs/AlxGa1-xAs quantum wells. We find that the carrier-induced reduction of exciton oscillator strength is not influenced by carrier cooling after creation of hot carriers with femtosecond laser pulses. Excitation density experiments suggest that either phase-space filling or Coulomb screening dominates the exciton bleaching, depending on the carrier density.

引用

页码：16565 / 16568

页数：4

共 16 条

[1] CHIRP MEASUREMENT OF LARGE-BANDWIDTH FEMTOSECOND OPTICAL PULSES USING 2-PHOTON ABSORPTION [J].

ALBRECHT, TF ;

SEIBERT, K ;

KURZ, H .

OPTICS COMMUNICATIONS, 1991, 84 (5-6) :223-227

[2] FEMTOSECOND DYNAMICS OF RESONANTLY EXCITED ROOM-TEMPERATURE EXCITONS IN II-VI CDZNTE/ZNTE QUANTUM-WELLS [J].

BECKER, PC ;

LEE, D ;

JOHNSON, AM ;

PROSSER, AG ;

FELDMAN, RD ;

AUSTIN, RF ;

BEHRINGER, RE .

PHYSICAL REVIEW LETTERS, 1992, 68 (12) :1876-1879

[3] ROOM-TEMPERATURE EXCITONIC NONLINEAR ABSORPTION AND REFRACTION IN GAAS/ALGAAS MULTIPLE QUANTUM WELL STRUCTURES [J].

CHEMLA, DS ;

MILLER, DAB ;

SMITH, PW ;

GOSSARD, AC ;

WIEGMANN, W .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1984, 20 (03) :265-275

[4]

Haug H, 1988, OPTICAL NONLINEARITI

[5] FEMTOSECOND DYNAMICS OF RESONANTLY EXCITED EXCITONS IN ROOM-TEMPERATURE GAAS QUANTUM WELLS [J].

KNOX, WH ;

FORK, RL ;

DOWNER, MC ;

MILLER, DAB ;

CHEMLA, DS ;

SHANK, CV ;

GOSSARD, AC ;

WIEGMANN, W .

PHYSICAL REVIEW LETTERS, 1985, 54 (12) :1306-1309

[6] FEMTOSECOND EXCITATION OF NONTHERMAL CARRIER POPULATIONS IN GAAS QUANTUM-WELLS [J].

KNOX, WH ;

HIRLIMANN, C ;

MILLER, DAB ;

SHAH, J ;

CHEMLA, DS ;

SHANK, CV .

PHYSICAL REVIEW LETTERS, 1986, 56 (11) :1191-1193

[7] OPTICAL INVESTIGATION OF EXCITON SCREENING IN GAAS/GAALAS MQW STRUCTURES [J].

LACH, E ;

WALTHER, M ;

TRANKLE, G ;

FORCHEL, A ;

WEIMANN, G .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1988, 150 (02) :679-683

[8] LARGE ROOM-TEMPERATURE OPTICAL NONLINEARITY IN GAAS/GA1-X ALXAS MULTIPLE QUANTUM WELL STRUCTURES [J].

MILLER, DAB ;

CHEMLA, DS ;

EILENBERGER, DJ ;

SMITH, PW ;

GOSSARD, AC ;

TSANG, WT .

APPLIED PHYSICS LETTERS, 1982, 41 (08) :679-681

[9] THE QUANTUM WELL SELF-ELECTROOPTIC EFFECT DEVICE - OPTOELECTRONIC BISTABILITY AND OSCILLATION, AND SELF-LINEARIZED MODULATION [J].

MILLER, DAB ;

CHEMLA, DS ;

DAMEN, TC ;

WOOD, TH ;

BURRUS, CA ;

GOSSARD, AC ;

WIEGMANN, W .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1985, 21 (09) :1462-1476

[10] MANY-PARTICLE EFFECTS AND NONLINEAR OPTICAL-PROPERTIES OF GAAS/(AL,GA)AS MULTIPLE-QUANTUM-WELL STRUCTURES UNDER QUASI-STATIONARY EXCITATION CONDITIONS [J].

SCHLAAD, KH ;

WEBER, C ;

CUNNINGHAM, J ;

HOOF, CV ;

BORGHS, G ;

WEIMANN, G ;

SCHLAPP, W ;

NICKEL, H ;

KLINGSHIRN, C .

PHYSICAL REVIEW B, 1991, 43 (05) :4268-4275

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