Wannier–Stark localization in InGaAs/GaAs superlattices and its application to electro‐optical devices
| Autor: | Yaohui Zhang, Wei Liu, Xiaobing Mei, Desheng Jiang, Ruozhen Wang, Junming Zhou |
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| Rok vydání: | 1993 |
| Předmět: |
Condensed Matter::Quantum Gases
Condensed matter physics Condensed Matter::Other Chemistry Photoconductivity Exciton Superlattice General Physics and Astronomy Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Electro-optics Electron localization function Condensed Matter::Materials Science Wavelength Absorption edge Modulation Physics::Atomic Physics |
| Zdroj: | Journal of Applied Physics. 74:4274-4276 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.354390 |
| Popis: | We have observed Wannier-Stark localization in strained In0.2Ga0.8As/GaAs superlattices by low- and room-temperature photocurrent spectra measurements. The experimental results are well in agreement with the theoretical predictions. A large field-induced modulation response of the absorption edge of the superlattices at room temperature suggests the possibilities of the application to the design of various kinds of electro-optical devices operating at a wavelength of 0.98 mum, based on Wannier-Stark localization effects. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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