| Autor: | V. Salmanov, A. Agayeva, S. R. Samedov, E. Gousseynov |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Attenuator (electronics)
Radiation Materials science business.industry Far-infrared laser Pulse duration Condensed Matter Physics Laser law.invention Photodiode Optics Absorption edge law Electrical resistivity and conductivity Electric field Electrical and Electronic Engineering business Instrumentation |
| Zdroj: | International Journal of Infrared and Millimeter Waves. 20:71-76 |
| ISSN: | 0195-9271 |
| DOI: | 10.1023/a:1021751617629 |
| Popis: | A design of an attenuator for IR laser radiation and the method for its manufacturing are described. The device is based on the electric-field-induced shift of the optical absorption edge of indium selenide crystals. It is shown that InSe with a resistivity of 0,2-200 Ω cm and applied electric field of 102 V/cm reduces the intensity of YAG:Nd+3 laser radiation (λ = 1,06 μm, pulse duration of 10 ns and power of 10 MW) by more than two orders of magnitude. The physical mechanism of the anomalous large shift of the absorption edge is given. The device can also be efficiently used as a cut-off filter for near IR range of spectrum. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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