Thermoelectric refrigeration system for single-photon detection

Abstract

The invention discloses a thermoelectric refrigeration system for single-photon detection. The thermoelectric refrigeration system comprises a first thermoelectric refrigeration plate, wherein a refrigerating surface of the first thermoelectric refrigeration plate is close to a single-photon detector; a heating surface of the first thermoelectric refrigeration plate is attached to a heat-conducting metal plate; the heat-conducting metal plate comprises a heat dissipation section and a power generation section; the heat dissipation section is close to the heating surface of the first thermoelectric refrigeration plate; the power generation section is attached to a second thermoelectric refrigeration plate; positive and negative ends of the second thermoelectric refrigeration plate are connected with a voltage stabilizer through leads; the output end of the voltage stabilizer is connected with a heat dissipater used for heat dissipation of the heat dissipation section. Compared with the prior art, the thermoelectric refrigeration system disclosed by the invention has the advantages that one part of heat on the heating surface of one thermoelectric refrigeration plate is conducted to another thermoelectric refrigeration plate and is used for manufacturing a temperature difference so as to generate power; with the adoption of an electric energy driven fan and other heat dissipaters, the heat dissipation efficiency of the heat dissipation section is improved; a closed temperature control loop is formed, and the temperature on the heating surface of the thermoelectric refrigeration plate can be controlled to fluctuate in a certain range.

Description

technical field [0001] The invention relates to the technical field of single-photon detection refrigeration, in particular to a thermoelectric refrigeration system for single-photon detection. Background technique [0002] In quantum information technology, single photon detection is indispensable as an important component. Due to the influence of dark current and thermal noise during the detection process, it is necessary to place the single photon detector at an ambient temperature of -30° to -50° Work in order to improve the detection efficiency. At present, most single-photon detectors use thermoelectric cooling sheets to cool down. When the thermoelectric cooling sheet is fed with current, the cooling surface will create a low-temperature environment required by the detector, and at the same time, the heating surface will also generate a lot of heat. Generally, it passes directly through the heat sink The heat from the heating surface is dissipated, but the heat dissi...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a thermoelectric cooling system for single photon detection, to solve the problem that the thermoelectric cooling sheet used for detector cooling in the prior art needs to cooperate with some radiators to achieve efficient heat dissipation, which not only increases the additional power input , the heat dissipated also causes a technical defect of energy waste

Images