PHOTODETECTOR FOR RECORDING INFRARED RADIATION IN FIELD OF 10,6 MKM Russian patent published in 2017 - IPC G01J5/58 G01K11/24 

FIELD: physics.

SUBSTANCE: photodetector includes a sealed gas-filled chamber equipped with an entrance window transparent to the measured radiation and an electronics unit. Inside the chamber, which is a hollow parallelepiped, identical electroacoustic transducers connected to the electronics unit are installed in place of its two opposite faces, along which the measured radiation propagates. The chamber is filled with a gas mixture of nitrogen-sulfur hexafluoride with a total pressure of 1 atm and a relative gas concentration of , where ℓ is the distance between the entrance window and the opposite face of the chamber.

EFFECT: increasing the device sensitivity.

1 dwg