US Patent Issued to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES on Aug. 5 for "Broadband thermal detector with a plurality of quarter-wave cavities" (French Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,254, issued on Aug. 5, was assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (Paris).

"Broadband thermal detector with a plurality of quarter-wave cavities" was invented by Thomas Perrillat-Bottonet (Grenoble, France) and Jean-Jacques Yon (Grenoble, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A thermal detector with a suspended absorbent membrane, which has at least two absorbers. The second absorber is designed to absorb the electromagnetic radiation in a spectral sub-band of a predefined spectral band, centered on a wavelength Lambdac2. Moreover, it is spaced from a reflector by a value equal to Lambdac2/4neq2 so ...