Transferred electron photocathode with greater than 5% quantum efficiency beyond 1 micron

Kenneth A. Costello; Gary A. Davis; Robert E. Weiss; Verle W. Aebi

doi:10.1117/12.44264

1 June 1991 Transferred electron photocathode with greater than 5% quantum efficiency beyond 1 micron

Kenneth A. Costello, Gary A. Davis, Robert E. Weiss, Verle W. Aebi

Proceedings Volume 1449, Electron Image Tubes and Image Intensifiers II; (1991) https://doi.org/10.1117/12.44264
Event: Electronic Imaging '91, 1991, San Jose, CA, United States

Abstract

This paper details the status of a program at Varian EOSP to develop high-sensitivity transmission photocathodes which function in the 0.95 - 1.65 micron wavelength range. One goal of the program is to develop a streak tube compatible cathode with greater than 1% quantum efficiency at 1.3 micrometers . Sealed tube results are presented. Measured performance characteristics include: cathode spectral response, room temperature cathode photoresponse stability, dark current, emitted electron energy distributions, photodiode resolution/MTF, and preliminary time response data. Finally, the paper includes a brief review of transferred electron photocathode physics and potential applications.

Citation Download Citation

Kenneth A. Costello, Gary A. Davis, Robert E. Weiss, and Verle W. Aebi "Transferred electron photocathode with greater than 5% quantum efficiency beyond 1 micron", Proc. SPIE 1449, Electron Image Tubes and Image Intensifiers II, (1 June 1991); https://doi.org/10.1117/12.44264

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