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Infrared to visible up‐conversion using GaP light‐emitting diodes

URN to cite this document:
urn:nbn:de:bvb:355-epub-175091
Eisfeld, W. ; Werling, U. ; Prettl, Wilhelm
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Date of publication of this fulltext: 26 Oct 2010 12:19


Abstract

Electroluminescence excited by infrared radiation has been observed in GaP light‐emitting diodes (LED’s) at low temperatures providing a new efficient method to convert infrared radiation within a broad spectral range into visible light. Using 10.6‐μm radiation of a CO2 laser an up‐conversion quantum efficiency of 3.4×10−6 was found. If a low dark current photomultiplier is employed to detect the ...

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