FANO RESONANCES IN QUASI-2D EXCITONS

被引：5

作者：

BRUM, JA ^{[1
]}

OBERLI, D ^{[1
]}

机构：

[1] TECH UNIV MUNICH,WALTER SCHOTTKY INST,W-8046 GARCHING,GERMANY

来源：

JOURNAL DE PHYSIQUE IV | 1993年 / 3卷 / C5期

关键词：

D O I：

10.1051/jp4:1993536

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the formation of Fano resonances in excitonic states in quantum wells. The quasi-2D excitons are modeled by an effective 2D Coulomb interaction. In this approach, uncoupled excitons originate from different pairs of subbands. The 3D character of the Coulomb attraction couples the excitons having the same in-plane symmetry. A typical Fano resonance is formed in the absorption spectra and is characterized by a broadening of the bound exciton peak and a dip in the continuum background.

引用

页码：191 / 194

页数：4

共 8 条

[1] EXCITON MIXING IN QUANTUM WELLS
BAUER, GEW
ANDO, T
[J]. PHYSICAL REVIEW B, 1988, 38 (09) : 6015 - 6030
[2] THEORY OF LINE-SHAPES OF EXCITON RESONANCES IN SEMICONDUCTOR SUPERLATTICES
CHU, HY
CHANG, YC
[J]. PHYSICAL REVIEW B, 1989, 39 (15) : 10861 - 10871
[3] EKEMBERG U, 1987, PHYS REV B, V35, P7585
[4] EFFECTS OF CONFIGURATION INTERACTION ON INTENSITIES AND PHASE SHIFTS
FANO, U
[J]. PHYSICAL REVIEW, 1961, 124 (06): : 1866 - &
[5] AN ALTERNATIVE APPROACH TO EXCITON BINDING-ENERGY IN A GAAS-ALXGAL-X AS QUANTUM
JIANG, TF
[J]. SOLID STATE COMMUNICATIONS, 1984, 50 (07) : 589 - 593
[6] VARIATIONAL CALCULATION OF FANO LINEWIDTH - APPLICATION TO EXCITONS IN QUANTUM-WELLS
PASQUARELLO, A
ANDREANI, LC
[J]. PHYSICAL REVIEW B, 1991, 44 (07): : 3162 - 3167
[7] HIGH ANGULAR-MOMENTUM EXCITONS IN GAAS/GA1-XALXAS QUANTUM WELLS
VINA, L
BAUER, GEW
POTEMSKI, M
MAAN, JC
MENDEZ, EE
WANG, WI
[J]. PHYSICAL REVIEW B, 1988, 38 (14): : 10154 - 10157
[8] VINA L, 1987, PHYS REV LETT, V58, P832, DOI 10.1103/PhysRevLett.58.832

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