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title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Semiconductor detector of single photons for quantum communications
Creators: name: Ð¡ÐµÐ´Ð¾Ð², ÐÐ¸ÐºÐ¸ÑÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: ÐºÐ²Ð°Ð½ÑÐ¾Ð²Ð°Ñ ÐºÑÐ¸Ð¿ÑÐ¾Ð³ÑÐ°ÑÐ¸Ñ
ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÐµ ÐºÐ¾Ð¼Ð¼ÑÐ½Ð¸ÐºÐ°ÑÐ¸Ð¸
ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ ÐºÐ»ÑÑÐµÐ¹
Ð»Ð°Ð²Ð¸Ð½Ð½ÑÐ¹ ÑÐ¾ÑÐ¾Ð´Ð¸Ð¾Ð´
ÑÐµÐ¶Ð¸Ð¼ Ð³ÐµÐ¹Ð³ÐµÑÐ°
Ð°ÑÑÐµÑÐ¿Ð°Ð»ÑÐ¸Ð½Ð³
Ð´ÐµÑÐµÐºÑÐ¾Ñ ÑÐ¾ÑÐ¾Ð½Ð¾Ð²
Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ Ð»Ð°Ð²Ð¸Ð½Ð½ÑÑ ÑÐ¾ÑÐ¾Ð´Ð¸Ð¾Ð´Ð¾Ð²
quantum cryptography
quantum communications
key distribution
avalanche photodiode
geiger mode
afterpaling
photon detector
avalanche photodiode parameters

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description: The topic of the final qualifying work: "Semiconductor detector of single photons for quantum communications". This work is devoted to quantum communications and single photon detectors. The paper provides information concerning the basics of quantum cryptography, in particular: the key distribution mechanism on the example of the BB84 protocol, an analysis of the advantages and disadvantages of quantum communication systems. A review of scientific and technical literature on the types of photon detectors, the structure of avalanche photodiodes, their main parameters, design principles, modes of operation of avalanche photodiodes, information on various methods of detecting single photons is provided. The reasons for the low operating speed (occurrence of the afterpaling effect) of avalanche photodiodes as de-tectors in the Geiger mode were studied. The paper formulated the basic requirements for the parameters of single photon detectors. The aim of the work is to study the principles of operation of semiconductor detectors of single photons. Such detectors are used in quantum communication systems as receivers of signals (photons) with various parameters. The subject of the work is avalanche photodiodes and single photon detectors based on them. The following research methods were used: the study and analysis of textbooks, articles and other sources on the topic of the work. The results of the work can be applied in the study of this topic, research and design of semiconductor detectors for single photons.