Dual-wavelength laser emission from an organic microcavity with terahertz beating
| Autor: | Robert Gehlhaar, H. Fröb, Michael J. Hoffmann, Markas Sudzius, Marko Swoboda, Karl Leo, Vadim G. Lyssenko |
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| Rok vydání: | 2007 |
| Předmět: |
Quantum optics
Electromagnetic field Materials science Physics and Astronomy (miscellaneous) business.industry Terahertz radiation General Engineering Phase (waves) Physics::Optics General Physics and Astronomy Bragg's law Laser Optical microcavity Photon upconversion law.invention Optics law Optoelectronics business |
| Zdroj: | Applied Physics B. 86:413-417 |
| ISSN: | 1432-0649 0946-2171 |
| DOI: | 10.1007/s00340-006-2558-6 |
| Popis: | We report on the dynamics of laser emission from an anisotropic organic microcavity filled with the guest-host composite of tris-(8-hydroxy quinoline) aluminium (Alq3) and 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM). In a single microcavity, a linesplitting of 0.18 THz between two perpendicularly polarized laser modes is observed. We ascribe this effect to an optical anisotropy in the distributed Bragg reflectors surrounding the organic layer. The temporal behavior of the electromagnetic field is studied by an up-conversion technique and shows an optical beating of 0.18 THz. Two modeling approaches are used to gain insight in the temporal evolution and phase behavior of the two modes. Both point towards the presence of a phase-coupling mechanism in this system. |
| Databáze: | OpenAIRE |
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