Room-temperature quantum well infrared modulator using a Schottky diode

A reverse biased Schottky diode is used to deplete the population in quantum wells and to modulate the intersubband absorption coefficient. This middle infrared electro-optic modulator works at room temperature. A waveguide geometry is demonstrated, with only six quantum wells. The 14% modulation co...

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Bibliographic Details
Published in:Applied physics letters 1996-04, Vol.68 (14), p.1904-1906
Main Authors: Berger, V., Vodjdani, N., Delacourt, D., Schnell, J. P.
Format: Article
Language:English
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Summary:A reverse biased Schottky diode is used to deplete the population in quantum wells and to modulate the intersubband absorption coefficient. This middle infrared electro-optic modulator works at room temperature. A waveguide geometry is demonstrated, with only six quantum wells. The 14% modulation could easily be enhanced by optimizing the quantum well overlap with the optical guided mode of the waveguide.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.116289