Control of Lasing from Bloch States in Microcavity Photonic Wires via Selective Excitation and Gain
| Autor: | Karl Leo, Andreas Mischok, Alex Zakhidov, Vadim G. Lyssenko, Robert Brückner, H. Fröb |
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| Přispěvatelé: | Publica |
| Rok vydání: | 2015 |
| Předmět: |
Materials science
business.industry Physics::Optics General Physics and Astronomy 02 engineering and technology Selective excitation 021001 nanoscience & nanotechnology Laser 01 natural sciences law.invention law 0103 physical sciences Polariton Optoelectronics Photonics 010306 general physics 0210 nano-technology business Lasing threshold Microscale chemistry |
| Zdroj: | Physical Review Applied. 3 |
| ISSN: | 2331-7019 |
| DOI: | 10.1103/physrevapplied.3.064016 |
| Popis: | By adding photonic wire structures to an organic microcavity, we create an additional confinement and a Bloch-like band structure in the dispersion of periodically structured cavities. We experimentally observe spontaneous and stimulated emission from the ground and different excited discrete modes at room temperature. By changing the spatial gain distribution via a two-beam interference, we are able to directly control the laser emission from both extended and confined modes of such organic photonic wires. Both spatial distribution and dispersion exhibit coherent emission from tunable modes, which we describe with an analytical model and numerical simulations, in agreement with our measurements. |
| Databáze: | OpenAIRE |
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