ELECTROOPTICAL MODULATION IN THE BLUE-GREEN SPECTRAL RANGE USING A ZNSE-ZN0.75CD0.25SE DOUBLE SUPERLATTICE AT ROOM-TEMPERATURE

Authors
GUAN ZP KUANG GK GRIEBL E KASTNER M GEBHARDT W
Citation
Zp. Guan et al., ELECTROOPTICAL MODULATION IN THE BLUE-GREEN SPECTRAL RANGE USING A ZNSE-ZN0.75CD0.25SE DOUBLE SUPERLATTICE AT ROOM-TEMPERATURE, Physical review. B, Condensed matter, 56(15), 1997, pp. 9589-9593
Citations number
40
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
15
Year of publication
1997
Pages
9589 - 9593
Database
ISI
SICI code
0163-1829(1997)56:15<9589:EMITBS>2.0.ZU;2-N
Abstract
Electroreflectance measurements performed in conjunction with absorpti on and photovoltage spectroscopy have allowed a determination of the m odulation mechanisms that are responsible for the quantum confined Sta rk effect in a ZnSe-Zn0.75Cd0.25Se double superlattice. This study ind icates that the modulation of the excitonic transitions in the two sup erlattices (E-1hh(1), E-2hh(1), and E-1hh(2)) are observed in the elec troreflectance spectra. Due to the thermal effects of the photoexcited carriers the higher subband with a smaller exciton binding energy is more sensitive to the ac electric field.