Applying external electrical field on crystal gain media for laser parameters control
| Autor: | V Chvykov, K Zemskov, N Ivanov, V Losev |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) business.industry Bandwidth (signal processing) Physics::Optics High voltage 02 engineering and technology 021001 nanoscience & nanotechnology Laser Polarization (waves) 01 natural sciences law.invention 010309 optics law Electric field 0103 physical sciences Sapphire Optoelectronics Crystal optics 0210 nano-technology business Luminescence Instrumentation |
| Zdroj: | Laser Physics Letters. 15:125002 |
| ISSN: | 1612-202X 1612-2011 |
| Popis: | The polarization of a laser crystal by an external electrical field generates new possibilities for the wide control of laser parameters, and can expand applications for existing lasers and also create a new line of the laser devices. The direct impact of external electrical fields on the laser solid state gain media was previously estimated using as an example a Ti:Sapphire (Ti:Sa) crystal. It was demonstrated that the metal-ligands distances displacement in this crystal under the external electrical field is comparable to distortions caused by a mechanical pressure of 150 kbar, measured in early experiments. In this letter, the experimental results of the electrical field impact on (Ti:Sa) crystal optical parameters are reported. These experiments demonstrate a reduction in the luminescence spectral amplitude and an increase in bandwidth with the red-shift of the maximal amplitude after high voltage application. |
| Databáze: | OpenAIRE |
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