A Broadband Near-IR Detector Based on a Large-Area InGaAs Photodiode for Time-Resolved Detection of Singlet Oxygen

V. G. Goldort, A. V. Demyanenko, A. S. Bogomolov, S. A. Kochubei, A. P. Pyryaeva, A. V. Baklanov

Результат исследования: Научные публикации в периодических изданияхстатья

Аннотация

Abstract: A broadband near-IR photodetector based on a large-area G12180-250A InGaAs photodiode (Hamamatsu) with a 5-mm-diameter photosensitive area was developed and tested. It is designed for detecting the IR luminescence of singlet oxygen. A circuit for signal amplification is assembled on the basis of broadband low-noise operational amplifiers with the subsequent filtering of a signal with an adjustable passband f varied from 15 to 600 kHz, thus allowing one to obtain a time resolution of better than 1 µs, a sensitivity level of 10 7 –10 9 V/W, and a noise equivalent power NEP [W/Hz 1/2 ] ≈ 1.4 × 10 –14 λ –1 [µm] f [kHz] in a frequency band of 15–600 kHz.

Язык оригиналаанглийский
Страницы (с-по)252-255
Число страниц4
ЖурналInstruments and Experimental Techniques
Том62
Номер выпуска2
DOI
СостояниеОпубликовано - 1 апр 2019

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