All-optical modulation using an n-doped quantum-well structure

The modulation of interband-resonant light by intersubband-resonant light using an n-doped quantum well is proposed, and results of the theoretical analysis are reported. It is shown that a large change in absorption coefficient from 100 to 3160 cm−1 for interband-resonant light can be obtained by c...

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Bibliographic Details
Published inJournal of applied physics Vol. 68; no. 12; pp. 6529 - 6531
Main Authors NODA, S, UEMURA, T, YAMASHITA, T, SASAKI, A
Format Journal Article
LanguageEnglish
Published Woodbury, NY American Institute of Physics 15.12.1990
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of specific thin films
Physics
Quantum well
Temperature
Semiconductor materials
Resonance state
Aluminium Gallium Arsenides Mixed
Theoretical study
Numerical method
Inorganic compound
Gallium Arsenides
Optical modulation
Optical absorption
Low temperature
Interband transition
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Summary:The modulation of interband-resonant light by intersubband-resonant light using an n-doped quantum well is proposed, and results of the theoretical analysis are reported. It is shown that a large change in absorption coefficient from 100 to 3160 cm−1 for interband-resonant light can be obtained by changing the intensity of intersubband-resonant light from 0 to 1 MW/cm2. Very fast modulation speed (∼ps) can be expected.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0021-8979
1089-7550
DOI:10.1063/1.346830