Title :
Far-infrared composite microbolometers
Author :
Wentworth, S.M. ; Neikirk, D.P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Abstract :
Composite microbolometers for use as broadband far-infrared radiation detectors have been constructed. These novel devices utilize nichrome load elements which can be impedance-matched to a planar antenna. The load elements are thermally coupled to tellurium detectors. Room-temperature responsivities of 120 V/W and noise equivalent powers of 6.7*10/sup -9/ W/ square root Hz have been achieved.<>
Keywords :
bolometers; infrared detectors; tellurium; Ni-Cr elements; Te detectors; broadband far-infrared radiation detectors; far IR; far infrared composite microbolometers; impedance-matched; noise equivalent powers; planar antenna; responsivities; Antenna measurements; Bolometers; Gold; Impedance; Infrared detectors; Loaded antennas; Planar arrays; Radiation detectors; Tellurium; Thermal loading;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99819
