2×(4×)128时间门控CMOS单光子雪崩二极管线探测器，分辨率为100ps，用于拉曼光谱

2013 Proceedings of the ESSCIRC (ESSCIRC) Pub Date : 2013-10-31 DOI:10.1109/ESSCIRC.2013.6649130

I. Nissinen, Antti-Kalle Länsman, J. Nissinen, Jouni Holma, J. Kostamovaara

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引用次数: 19

摘要

采用高压0.35 μm CMOS技术，设计并制作了一种用于拉曼光谱的2×(4×)128多相时门控单光子雪崩二极管(SPAD)线探测器。利用全线探测器上的四个时间门同时测量光子的时间位置，分辨率可达100ps。这种方法可以显著降低拉曼光谱的荧光背景。测量结果表明，时间门可以分布在整条线探测器上，精度为±35 ps，这对于激光脉冲宽度约为150 ps的时间门控脉冲拉曼光谱来说是足够的。

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2×(4×)128 time-gated CMOS single photon avalanche diode line detector with 100 ps resolution for Raman spectroscopy

A 2×(4×)128 multiphase time-gated single photon avalanche diode (SPAD) line detector has been designed and fabricated in a high voltage 0.35 μm CMOS technology for Raman spectroscopy. The time positions of the photons can be measured with the resolution of 100 ps using four time gates over the whole line detector simultaneously. This approach enables to reduce the fluorescence background of the Raman spectrum markedly. Measurements showed that the time gates can be distributed over the whole line detector with the accuracy of ± 35 ps which is adequate for a time-gated pulsed Raman spectroscopy using a laser pulse width of approximately 150 ps.

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2013 Proceedings of the ESSCIRC (ESSCIRC)

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