Enhancement of Photoelectric Quantum Efficiency in the Near Infrared

Abstract

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Total internal reflection enhancement of photodetector performance

“…At about this time, another technique for enhancing photocathode quantum efficiences was developed, based on using a strong external electric field to reduce the photocathode vacuum potential barrier and increase the fraction of photoelectrons crossing it (11). While the enhancement is modest, it is multiplicative with the one obtained by TIR, allowing even larger efficiency gains (12.…”

Total Internal Reflection Enhancement of Photodetector Performance

“…The improvement is quite polarization sensitive (10). At about this time, another technique for enhancing photocathode quantum efficiences was developed, based on using a strong external electric field to reduce the photocathode vacuum potential barrier and increase the fraction of photoelectrons crossing it (11). While the enhancement is modest, it is multiplicative with the one obtained by TIB,, allowing even larger efficiency gains (12, IS).…”