Blue shift of the absorption edge in AlGaInAs-GaInAs superlattices: Proposal for an original electro-optical modulator
- 26 December 1988
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 53 (26) , 2632-2634
- https://doi.org/10.1063/1.100540
Abstract
The modulation by an external electric field of the resonant tunneling coupling between adjacent wells in a thin layer superlattice results in a blue shift of the effective absorption edge. We present a study of the electroabsorption in Al0.24Ga0.24In0.52As‐Ga0.47 In0.53 As superlattices, which evidence directly this remarkable effect, and we discuss its application to the design of new electro‐optical modulators.Keywords
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