Home – Home – Jornals – Avtometriya 2021 number 1

An analytical review of optical-acoustic receivers (OARs) based on the Golay cells in the infrared and terahertz radiation ranges is presented. The history of the OAR emergence and development from the first works of Bell, Hayes, Golay, up to the present time is considered. The OAR advantages, namely, the constant and high sensitivity in a wide range of the spectrum and the highest detection ability among thermal receivers, are noted. The main characteristics of membranes, which are the main elements of OARs, are considered, and the physical properties of graphene, as the most preferred material for membranes, are analyzed. Three OAR design groups are considered: single cells with optical information reading and a condenser microphone, selective receivers with gas-filled chambers, and matrix receivers. Estimates are presented, which show that the use of single layer graphene membranes makes it possible to create IR and THZ radiation receivers with cells of the order of tens of microns with extremely high sensitivity. A new design scheme of matrix terahertz opto-acoustic receivers with the use of hexatrigraphene (C)₆₃₍₆₎ membranes with record-breaking characteristics is proposed.