Title :
Experimental estimation of optical NEP of 350GHz CEB bolometer
Author :
Mukhin, Anton S. ; Abashin, Alexander E. ; Bolshakov, Oleg S. ; Lesnov, Ilya V. ; Shishov, Aleksey A.
Author_Institution :
Nizhny Novgorod State Tech. Univ., Nizhny Novgorod, Russia
Abstract :
We have constructed an experimental setup for estimation of optical response of 350 GHz Cold-electron bolometer(CEB) integrated in cross-slot antenna for planned high altitude balloon-born telescope BOOMERANG. The experimental setup based on dilution cryostat Triton 200 with 10mK base temperature. Our sensor consist of CEB sensor integrated in cross-slot antenna with 350GHz central frequency. Actual spectral band was reduced by quasioptical filters placed in front of detector. We constructed high sensitive low noise readout circuit based on room-temperature JFET operational amplifiers with optimal noise match with detector resistance in optimal working point. We constructed advanced geometry black body radiator with tuned temperature for optical measurements with needed background power load.
Keywords :
astronomical telescopes; balloons; bolometers; circuit noise; cryostats; electric noise measurement; electric resistance measurement; junction gate field effect transistors; operational amplifiers; optical filters; optical noise; optical sensors; optical variables measurement; readout electronics; semiconductor device noise; slot antennas; submillimetre wave detectors; terahertz wave detectors; CEB bolometer; CEB sensor; advanced geometry black body radiator; cold-electron bolometer; cross-slot antenna; dilution cryostat Triton 200; frequency 350 GHz; low noise readout circuit; optical NEP; optical measurement; optical response estimation; optimal noise matching; planned high altitude balloon-born telescope BOOMERANG; quasioptical filter; resistance detector; room-temperature JFET operational amplifier; temperature 10 mK; temperature 293 K to 298 K; Bolometers; Noise; Optical amplifiers; Optical filters; Optical sensors; Temperature measurement; Temperature sensors; NIS-junctions; THZ receiver cross-slot antenna; bolometer;
Conference_Titel :
Low Temperature Electronics (WOLTE), 2014 11th International Workshop on
Conference_Location :
Grenoble
DOI :
10.1109/WOLTE.2014.6881030
