Advancing the UV/EUV
Measurement Science


AXUV Series

100% Internal Quantum Efficiency in the UV/EUV

AXUV Information

AXUV Products


UVG Series

100% Internal Quantum Efficiency and Improved Stability in the UV

UVG Information

UVG Products


SXUV Series

Hundred of gigarads of radiation hardness; no degradation on exposure to 100 eV photons

SXUV Information

SXUV Products

PN Series

Newly available diodes with a p-on-n structure and 100% IQE between 350 and 940 nm.

PN Diodes: Information

PN Diodes: Information

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International Radiation Detectors, Inc.

Absolute UV Silicon Photodiodes

UVG Series

Silicon p-n junction photodiodes (UVG-series) with 100% photogenerated carrier collection efficiency have been developed by International Radiation Detectors for detection of near ultraviolet and vacuum ultraviolet (600 - 160 nm) photons. Unlike conventional p-n junction photodiodes, these photodiodes do not have a doped dead-region in front and have zero surface recombination resulting in near theoretical quantum efficiencies to UV and visible photons. The UVG series diodes are fabricated by a ULSI (Ultra Large Scale Integrated Circuit) compatible process and their construction is shown in the following figure.