Statistics – Applications
Scientific paper
Sep 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996spie.2894..163m&link_type=abstract
Proc. SPIE Vol. 2894, p. 163-169, Detectors, Focal Plane Arrays, and Applications, William G. Frederick; Junhong Su; Marc Wigdor
Statistics
Applications
Scientific paper
8-element microbolometer detector arrays of high T(subscript c) superconducting films have been fabricated using both granular and epitaxial YBCO films deposited by electron beam evaporation with post annealing and laser ablation respectively. The devices were patterned by ion beam milling. The characteristics for optical response of the arrays were investigated in the region of 8 approximately 14 micrometers . A blackbody at the temperature of 500 K was used as a radiation source for sensitivity measurement. The microbolometer array was mounted in a temperature variable dewar. The operating temperature of the array was regulated at the center of the resistive transition edge using a temperature controller. The average noise equivalent power and the average normalized detectivity of the arrays were in the order of 10(superscript -12) WHz(superscript -1/2) and 10(superscript 9) cmHz(superscript 1/2)W(superscript -1) respectively at the chopping frequency of 10 Hz. The frequency response of the arrays were also studied in our experiments.
Liu Luqin
Mai Zhihong
Yi Xin J.
Zhao Xing R.
Zhou Fang Q.
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