&#1040;3&#1042;5 photodiode sensors for low-temperature pyrometry

Galina Yu. Sotnikova; Sergey E. Aleksandrov; Gennadiy A. Gavrilov

doi:10.1117/12.886309

9 May 2011 A3B5 photodiode sensors for low-temperature pyrometry

Galina Yu. Sotnikova, Sergey E. Aleksandrov, Gennadiy A. Gavrilov

Proceedings Volume 8073, Optical Sensors 2011; and Photonic Crystal Fibers V; 80731A (2011) https://doi.org/10.1117/12.886309
Event: SPIE Optics + Optoelectronics, 2011, Prague, Czech Republic

Abstract

Mid-infrared immersion lens photodiodes developed at the Ioffe Institute have high spectral selectivity (λmax/▵λ≈0.1...0.15) at different wavelengths -2.9, 3.3, 4.2 and 4.7 microns, the response time (up to 10^-9s) and detectivity (D* ≈ 10⁹-10¹¹, (cm√Hz)/W) being significantly higher than those of currently known detectors of thermal radiation[1].The analysis of the transfer function of the temperature sensors based on A3B5 photodiodes has shown that they permit implementing the methods of color and two-color pyrometry providing a significant decrease of the methodical error in optical temperature measurements associated with unknown values of object surface emissivity and uncontrollable changes in the environment transmission.

Citation Download Citation

Galina Yu. Sotnikova, Sergey E. Aleksandrov, and Gennadiy A. Gavrilov "A3B5 photodiode sensors for low-temperature pyrometry", Proc. SPIE 8073, Optical Sensors 2011; and Photonic Crystal Fibers V, 80731A (9 May 2011); https://doi.org/10.1117/12.886309

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