TY - JOUR

T1 - Study of the Response Time and Sensitivity of the MG-32 Pyroelectric Detector with a Polypropylene Window in the Visible Range

AU - Gerasimov, V. V.

AU - Krasnopevtsev, S. E.

AU - Turkiya, G. R.

AU - Fromichev, D. V.

AU - Степанов, В. А.

N1 - Gerasimov V. V., Krasnopevtsev S. E., Turkiya G. R., Fromichev D. V., Stepanov V. A. Investigation of response time and sensitivity of the MG-32 pyroelectric detector with a polypropylene window in the visible range // Optoelectronics, Instrumentation and Data Processing. — 2025. — Vol. 61. — №5 — P. 658–670. — DOI: 10.3103/S8756699025700748. This work was supported by the Russian Science Foundation (project no. 25-22-20008) and the Government of Novosibirsk oblast (https://rscf.ru/project/25-22-20008/).

PY - 2025/10

Y1 - 2025/10

N2 - The response time and sensitivity in the visible spectral range of a commercial MG-32 pyroelectric detector based on the organic crystal of tetraaminodiphenyl (NZPP Vostok JSC) with a 0.5 mm thick polypropylene input window are studied. The sensor time constant is varied by connecting a capacitance in the range from 2 nF to 3.8 F to the feedback circuit of the receiver amplifier. With increasing capacitance in the range of 0.1–3.8 F, the receiver time constant increased linearly from 0.2 to 5 ms, and at lower capacitances it reached saturation, setting a limit of 25 s. The voltage sensitivity is tested using a diode laser (nm); at F, it is 3600 V W, which is 8 less than the sensitivity of the receiver without a polypropylene window. The equivalent noise power is virtually independent of the feedback capacitance in the range of F and is W Hz, while the detectivity is cm W Hz. These characteristics are approximately one or two orders of magnitude superior to those of other commercial pyroelectric detectors and the Golay optoacoustic cell, making the receiver under study quite promising and versatile for many applications.

AB - The response time and sensitivity in the visible spectral range of a commercial MG-32 pyroelectric detector based on the organic crystal of tetraaminodiphenyl (NZPP Vostok JSC) with a 0.5 mm thick polypropylene input window are studied. The sensor time constant is varied by connecting a capacitance in the range from 2 nF to 3.8 F to the feedback circuit of the receiver amplifier. With increasing capacitance in the range of 0.1–3.8 F, the receiver time constant increased linearly from 0.2 to 5 ms, and at lower capacitances it reached saturation, setting a limit of 25 s. The voltage sensitivity is tested using a diode laser (nm); at F, it is 3600 V W, which is 8 less than the sensitivity of the receiver without a polypropylene window. The equivalent noise power is virtually independent of the feedback capacitance in the range of F and is W Hz, while the detectivity is cm W Hz. These characteristics are approximately one or two orders of magnitude superior to those of other commercial pyroelectric detectors and the Golay optoacoustic cell, making the receiver under study quite promising and versatile for many applications.

KW - pyroelectric detector

KW - tetraaminodiphenyl

KW - visible range

KW - response time

KW - sensitivity

UR - https://www.scopus.com/pages/publications/105031491459

UR - https://www.mendeley.com/catalogue/56718c58-6392-3ee8-b92d-552f6e907533/

U2 - 10.3103/S8756699025700748

DO - 10.3103/S8756699025700748

M3 - Article

VL - 61

SP - 658

EP - 670

JO - Optoelectronics, Instrumentation and Data Processing

JF - Optoelectronics, Instrumentation and Data Processing

SN - 8756-6990

IS - 5

ER -