Galina Yu.Sotnikova, Sergey
E.Aleksandrov and Gennadiy A.Gavrilov
"À3Â5 photodiode sensors for
low-temperature pyrometry"
Ioffe Physical-Technical Institute of the Russian Academy of Sciences,
194021, Polytekhnicheskaya 26, St.Petersburg, Russia
Optical Sensors 2011; and Photonic
Crystal Fibers V, edited by Francesco Baldini, Jiri Homola, Robert A. Lieberman,
Kyriacos Kalli, Proc. of SPIE Vol. 8073, 80731A · © 2011 SPIE · CCC code:
0277-786X/11/$18 · doi: 10.1117/12.886309
ABSTRACT
Mid-infrared immersion lens photodiodes developed at the Ioffe Institute have
high spectral selectivity
(λmax/Δλ≈0.1…0.15) at different wavelengths -2.9, 3.3, 4.2 and 4.7
microns, the response time (up to 10-9 s) and detectivity (D* ≈ 109-1011,
(cm√Hz)/W) being significantly higher than those of currently known detectors of
thermal radiation .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.
Keywords: Mid-infrared spectral range, A3B5 immersion lens photodiodes,
two-color pyrometers, pyrometer transfer
_____________________________________________________________________________________________________________-
Galina Yu.Sotnikova, Sergey
E.Aleksandrov and Gennadiy A.Gavrilov, Aleksandr A. Kapralov
"New possibilities of
methods and devices of optical pyrometers"
( in Russian)
Applied optics conference -2012 (St.Petersburg)
