¹V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine,
41 Nauky Avenue, 03028 Kyiv, Ukraine
²Physics Department, Taras Shevchenko National University of Kyiv, 4 Hlushkova Avenue, 03022 Kyiv, Ukraine
³State University of Information and Communication Technologies, 7 Solomenska Street, 03110 Kyiv, Ukraine
⁴National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”,
37, Peremohy Ave., 03056 Kyiv, Ukraine
*Corresponding author e-mail: mamykin@isp.kiev.ua

Abstract. In this study, a smoke detector based on plasmon-polariton photodetector (PPPD) is proposed to address the issue of false triggering in optical smoke detectors under conditions of high room dustiness. The proposed detector uses a PPPD based on a p-n junction in a silicon wafer, on which a metal grating is fabricated by interference photo-lithography technology for surface plasmon-polariton resonance excitation. The design of the smoke detector based on PPPD has been developed to enable the production of a relatively compact and inexpensive device. As a result of optimizing the PPPD parameters, the following characteristics of experimental samples with Au and Al gratings were achieved: the maximum polarization sensitivity Ip /Is ranging from 3 to 8, the spectral and angular half-widths of the photocurrent resonance range from 50 to 200 nm and from 5° to 10°, respectively, and photosensitivity at the resonance maximum Iph = 0.04...0.1 A/W.

Keywords:surface plasmon resonance, plasmon-polariton photodetectors, smoke detector.

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