| Autor: |
Karlov, N. V., Kuz'min, G. P., Kuz'minov, Yu., Kuritzin, B. A., Osiko, V. V., Prokhorov, A. M. |
| Zdroj: |
Ferroelectrics; June 1981, Vol. 33 Issue: 1 p223-230, 8p |
| Abstrakt: |
The paper is concerned with the problems of application and operation of BaxSr1-xNb2O6 (BSN) crystals as detectors of powerful short pulses of radiation from a CO2-laser with λ = 10.6 μm. The thermodynamic and optical characteristics of BSN crystals with a composition X = 0.5 are presented. The dependences of permittivities ε' and ε'' and tgδ of the frequencies up to 400 MHz are measured. Thermodynamic analysis of the detector operation is made by solving a one-dimensional equation of heat conduction from a source of internal heat distributed by the Bouguer law. These crystals were used for experimental investigation of recording powerful radiation pulses. The BSN crystals are shown to have a voltage responsivity of 20 V/MW, time rise - 2 ns, linearity - up to 3 MW/cm2, strength - up to 9 MW/cm2. A design of the pyroelectric detector is presented. The detector is applied for investigating the time and spatial structure of the powerful short pulses from a CO2-laser. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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