Nonlinear optical absorption in intrinsic stark effect superlattices
| Autor: | S. Subbanna, I. Sela, Darryl L. Smith, Herbert Kroemer, D. E. Watkins, B. K. Laurich |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Condensed Matter::Quantum Gases
Materials science Condensed matter physics Absorption spectroscopy Superlattice Nonlinear optics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Blueshift Condensed Matter::Materials Science symbols.namesake Stark effect Electric field symbols Shielding effect General Materials Science Electrical and Electronic Engineering Absorption (electromagnetic radiation) |
| Zdroj: | Superlattices and Microstructures. 9:499-502 |
| ISSN: | 0749-6036 |
| DOI: | 10.1016/0749-6036(91)90178-t |
| Popis: | We have investigated the nonlinear optical properties of a new class of strained-layer superlattices, the intrinsic Stark effect superlattices (ISES). The superlattices consisted of GaInAs/GaAs grown along the (211) B direction. We observed a shift of the excitonic absorotion to higher energies (blue shift) with increasing intensity of the transmitted beam. The observed optical nonlinearity was about one order of magnitude stronger than the one due to excitonic screening in the (100) oriented reference material. This effect is attributed to the screening of the internal electric fields by photogenerated carriers. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|