Showing papers by "Dmitri B. Horoshko published in 2014"
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TL;DR: In this paper, a statistical characterization of the effect of afterpulsing in a free-running silicon single-photon detector was performed by measuring the distribution of after-pulse waiting times in response to pulsed illumination and fitting it by a sum of exponentials.
Abstract: We have performed a statistical characterization of the effect of afterpulsing in a free-running silicon single-photon detector by measuring the distribution of afterpulse waiting times in response to pulsed illumination and fitting it by a sum of exponentials. We show that a high degree of goodness of fit can be obtained for 5 exponentials, but the physical meaning of estimated characteristic times is dubious. We show that a continuous limit of the sum of exponentials with a uniform density between the limiting times gives excellent fitting results in the full range of the detector response function.
5 citations
TL;DR: In this paper, the authors measured the distribution of afterpulse waiting times in response to pulsed illumination and fitting it by a sum of exponentials, and showed that a high degree of goodness of fit can be obtained for 5 exponsentials, but the physical meaning of estimated characteristic times is dubious.
Abstract: We have performed a statistical characterization of the effect of afterpulsing in a free-running silicon single-photon detector by measuring the distribution of afterpulse waiting times in response to pulsed illumination and fitting it by a sum of exponentials. We show that a high degree of goodness of fit can be obtained for 5 exponentials, but the physical meaning of estimated characteristic times is dubious. We show that a continuous limit of the sum of exponentials with a uniform density between the limiting times gives excellent fitting results in the full range of the detector response function. This means that in certain detectors the afterpulsing is caused by a continuous band of deep levels in the active area of the photodetector.
2 citations
18 Mar 2014
TL;DR: In this article, a method for generating a single-cycle squeezed light by parametric down-conversion in a chirped quasi-phase-matched nonlinear crystal was proposed.
Abstract: We propose a method for generation of a single-cycle squeezed light by parametric down-conversion in a chirped quasi-phase-matched nonlinear crystal. We predict an ultrabroadband squeezing in the down-converted light with flat squeezing spectrum comprising a full optical octave.