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Y-Ba-Cu-O thin films as high speed IR detectors

  • SUNY Buffalo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Y-Ba-Cu-O thin film infrared detectors were fabricated and studied with various lasers. Operation of the detector in both the bolometric and nonbolometric modes was investigated at 10 μm witha CO2 laser. In the bolometric mode, the detectivity of the detector at 90 K was 2.1×108 cm-Hz 1/2 /W with a response time of 15 μs, corresponding to a bandwidth of 70 KHz. The speed of the detector in the nonbolometric mode was much faster and was beyond the instrument resolution. With a picosecond N2 laser, the output showed an instrument limited duration of 2 ns. The detectivity could not be determined in the nonbolometric mode due to the extremely low noise. The superconducting film quality is critical to the performance of these detectors.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsKul B. Bhasin, Vernon O. Heinen
PublisherPubl by Int Soc for Optical Engineering
Pages127-136
Number of pages10
ISBN (Print)0819403431
StatePublished - 1990
EventSuperconductivity Applications for Infrared and Microwave Devices - Orlando, FL, USA
Duration: Apr 19 1990Apr 20 1990

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1292
ISSN (Print)0277-786X

Conference

ConferenceSuperconductivity Applications for Infrared and Microwave Devices
CityOrlando, FL, USA
Period04/19/9004/20/90

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