GIANT EXCITON RESONANCE REFLECTANCE IN BRAGG MQW STRUCTURES

Authors
KOCHERESHKO VP POZINA GR IVCHENKO EL YAKOVLEV DR WAAG A OSSAU W LANDWEHR G HELLMANN R GOBEL EO
Citation
Vp. Kochereshko et al., GIANT EXCITON RESONANCE REFLECTANCE IN BRAGG MQW STRUCTURES, Superlattices and microstructures, 15(4), 1994, pp. 471-473
Citations number
7
Categorie Soggetti
Physics, Condensed Matter
Journal title
Superlattices and microstructures → ACNP
ISSN journal
07496036
Volume
15
Issue
4
Year of publication
1994
Pages
471 - 473
Database
ISI
SICI code
0749-6036(1994)15:4<471:GERRIB>2.0.ZU;2-9
Abstract
We have studied the reflectivity from heterostructures with a finite n umber of equidistant quantum wells. A giant amplification of the refle ctance has been observed in the multiple quantum wells satisfying the Bragg condition kd=pi, where k is the light wavevector in the exciton resonance region and d is the period of the structure. No difference i n the photoluminescence intensity and decay time has been found on the Bragg and ''anti-Bragg'' (kd=pi/2) structures.