Avalanche Photodiodes with Enhanced Ionization Rates Ratio: Towards a Solid State Photomultiplier
- 1 January 1983
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 30 (1) , 424-428
- https://doi.org/10.1109/tns.1983.4332303
Abstract
Recent results on a new class of low excess noise avalanche photodiodes (APDs) are discussed. A significant enhancement of the ionization rates ratio has been demonstrated in AlGaAs/GaAs superlattice and graded gap APDs. In addition two novel APDs where only electrons ionize (channeling and staircase APDs) have been disclosed. The staircase APD has lower bias voltage (5-10V) than conventional APDs and virtually noise free multiplication similarly to a phototube.Keywords
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