Enhanced electroabsorption in selectively doped (Ga,In)As/(Al,In)As asymmetric double quantum wells

M. F. Krol, R. P. Leavitt, J. T. Pham, B. P. McGinnis, N. Peyghambarian

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

We report enhanced electroabsorption in selectively doped (Ga,In)As/(Al,In)As asymmetric double quantum wells (ADQWs) by the use of real space electron transfer. The electron concentration in both the wide and narrow wells is investigated by field dependent absorption and photoluminescence spectroscopy. The results are compared to absorption changes in an undoped ADQW structure that utilizes the quantum confined stark effect. The doped modulator exhibits a significantly larger red shift with applied field than the undoped structure.

Original languageEnglish (US)
Number of pages1
JournalApplied Physics Letters
Volume66
DOIs
StatePublished - Dec 1 1995

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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