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Proceedings Paper

Analysis and design of extreme intensity irradiation devices for research applications
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Paper Abstract

Applications of photobiological studies and photochemical reactions are unlocking innovative results both for research and industrial fields. With this work we report on the optical, electronic and thermal design of extreme irradiance incoherent solid-state light sources. State of the art GaN (Gallium Nitride) and AlInGaP (Aluminum Indium Gallium Phosphide) LEDs have been analyzed and selected in order to achieve 450 nm and 940 nm radiation. Different optical approaches have been evaluated: i) geometric lenses, ii) TIR lenses and iii) reflectors. Lighting unit prototypes demonstrate a global efficiency (optical power vs electrical power) of up to 50% and an irradiance over an area of 100x100 mm in excess of 10 W/cm2.

Paper Details

Date Published: 25 February 2020
PDF: 10 pages
Proc. SPIE 11302, Light-Emitting Devices, Materials, and Applications XXIV, 113020C (25 February 2020); doi: 10.1117/12.2548268
Show Author Affiliations
Nicola Trivellin, Univ. of Padova (Italy)
Alberto Pizzolato, Univ. of Padova (Italy)
Matteo Meneghini, Univ. of Padova (Italy)
Fabrizio Dughiero, Univ. of Padova (Italy)
Michele Forzan, Univ. of Padova (Italy)
Enrico Zanoni, Univ. of Padova (Italy)
Gaudenzio Meneghesso, Univ. of Padova (Italy)

Published in SPIE Proceedings Vol. 11302:
Light-Emitting Devices, Materials, and Applications XXIV
Jong Kyu Kim; Michael R. Krames; Martin Strassburg, Editor(s)

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