UNCOOLED METALLIC BOLOMETER Russian patent published in 2008 - IPC H01L31/00 G01J5/20 

FIELD: physics.

SUBSTANCE: said utility invention relates to thermal photoreceivers for the detection of monochromatic radiation in the far infrared (IR) range and determining the angle of arrival of that radiation. The development may be used in spectrometric and astronomical instruments, special purpose equipment, and communication equipment. The metallic bolometer contains a non-transparent metallic film on an optical heat-insulating substrate placed in a vacuum container with a transparent window. A dielectric layer of a certain thickness is applied on the film surface. The film surface facing the window has a corrugated section illuminated with the radiation being detected; the section length is equal to the propagation length of the surface electromagnetic wave excited in the film. The corrugation period is calculated using a certain formula.

EFFECT: invention provides increase of device selectivity and increase of long-wavelength limit of operating range.

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