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Microscopic Many-Body Effects on Intersubband Resonance in Quantum Well |
| ZHANG Yong-Hua;CAO Jun-Cheng |
| State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 |
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| Cite this article: |
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ZHANG Yong-Hua, CAO Jun-Cheng 2005 Chin. Phys. Lett. 22 2696-2699 |
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Abstract Considering the Coulomb many-body interactions, we investigate the intersubband optical processes of the quantum well by using the semiconductor Bloch equations. We calculate the evolution of intersubband absorption spectral line shape as a function of lattice temperature and electron density. It is found that the coupling of intersubband plasmons can reduce and red-shift the lower energy resonance, simultaneously enhance and blue-shift the higher energy resonance. The dependence of cascading resonances on temperature and electron density is also discussed.
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| Keywords:
78.70.-g
78.20.Bh
73.21.Fg
78.66.Fd
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Published: 01 October 2005
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| PACS: |
78.70.-g
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(Interactions of particles and radiation with matter)
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78.20.Bh
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(Theory, models, and numerical simulation)
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73.21.Fg
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(Quantum wells)
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78.66.Fd
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(III-V semiconductors)
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