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Dhulla V.H. Gudkov G. Gavrilov D. Stepukhovich A. Tsupryk A. Kosobokova O. Borodin A. Gorbovitski B. Gorfinkel V. 《IEEE journal of selected topics in quantum electronics》2007,13(4):926-933
We present the design, implementation, and characterization of a single-photon counting module (SPCM) based on large-area avalanche photodiode (APD) and new logic circuit based on TTL integrated circuits (ICs) for generating precise quench and reset delays. Low dark count rate, high linearity of 2 MHz, maximum dynamic range of 12 MHz, and minimum dead time of 35 ns have been achieved with 0.2 mm peltier-cooled single photon avalanche diode (SPAD) [model C30902S-DTC, Perkin Elmer Optoelectronics (PKI)]. The developed module was fiberized and tested for the detection of fluorescently labeled DNA sequences. Detection sensitivity at the level of single fluorescent molecule has been demonstrated. 相似文献
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