THz-BAND POLARIZATION SENSITIVE DETECTOR Russian patent published in 2019 - IPC G01J4/00 H01L31/02 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement technology and relates to a polarization-sensitive THz-band detector. Detector includes an input window for radiation input, monocrystalline germanium, connected electrically or optically with a signal recording device, and a refrigerator that serves to establish the temperature of monocrystalline germanium. Single-crystal germanium is cut in the form of a straight prism and contains a donor impurity of antimony, or phosphorus, or arsenic, or bismuth, or lithium with concentration of 10¹⁴–10¹⁶ cm^-3. In addition, the detector includes a pressure module, made with the possibility of changing the mutual orientation of single-crystal germanium and the polarization of input radiation in a plane perpendicular to the direction of the input radiation, and the possibility of uniaxial compression of monocrystalline germanium in the direction perpendicular to the direction of the input radiation. In this case, uniaxial compression is directed along crystal axis [111] of the crystal or the equivalent axis from <111> family, perpendicular to the bases of the straight prism.

EFFECT: technical result consists in providing the ability to determine the direction of polarization of the detected THz-band.

1 cl, 1 dwg