Patent ID: 8373123
Filing Date: 2013-02-12
Classification: G01J

Abstract:
1. A bolometric detector for detecting electromagnetic radiation in a region extending from infrared to terahertz frequencies, comprising: a first and a second crossed bow-tie antenna intended to collect electromagnetic radiation; a resistive load coupled to said antennas in order to convert the collected electromagnetic power into calorific power; and a bolometric micro bridge structure suspended above a substrate by support and thermal isolation arms, with the micro bridge comprising: wherein the first antenna is located outside the micro bridge and is capacitively coupled with the resistive load and the second antenna is located in the micro bridge and is resistively coupled with the resistive load, and wherein the resistive load comprises a metal film and wherein the micro bridge comprises winglets arranged facing the first antenna on the metal film so as to obtain impedance matching between the first antenna and the metal film.