Coherent Terahertz Radiation from Cavity Polaritons in GaAs/AlGaAs Microcavities
| Autor: | S. N. G. Chu, R. Harel, Ken W. West, Loren Pfeiffer, J. D. Wynn, J.M. Vandenberg, Igal Brener |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Condensed Matter::Other business.industry Terahertz radiation Exciton Physics::Optics Condensed Matter Physics Electromagnetic radiation Electronic Optical and Magnetic Materials Terahertz spectroscopy and technology Photomixing Dipole Semiconductor Optics Polariton Optoelectronics business |
| Zdroj: | physica status solidi (a). 178:365-372 |
| ISSN: | 1521-396X 0031-8965 |
| Popis: | We report on the first observation of coherent terahertz (THz) electromagnetic radiation emitted from an unbiased semiconductor microcavity (MC) at low temperature. The THz radiation is emitted after resonant optical excitation of the two cavity polariton modes and its frequency is in excellent agreement with the vacuum Rabi splitting (VRS) frequency. We attribute the THz radiation to oscillations between the MC and the exciton modes with a frequency equal to the VRS, resulting in a radiating oscillating dipole. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text