28 September 2015 Compound parabolic concentrator optical fiber tip for FRET-based fluorescent sensors
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96346I (2015) https://doi.org/10.1117/12.2192508
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
The Compound Parabolic Concentrator (CPC) optical fiber tip shape has been proposed for intensity based fluorescent sensors working on the principle of FRET (Förster Resonance Energy Transfer). A simple numerical Zemax model has been used to optimize the CPC tip geometry for a step-index multimode polymer optical fiber for an excitation and emission wavelength of 550 nm and 650nm, respectively. The model suggests an increase of a factor of 1.6 to 4 in the collected fluorescent power for an ideal CPC tip, as compared to the plane-cut fiber tip for fiber lengths between 5 and 45mm.
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Hafeez Ul Hassan, Hafeez Ul Hassan, Kristian Nielsen, Kristian Nielsen, Soren Aasmul, Soren Aasmul, Ole Bang, Ole Bang, } "Compound parabolic concentrator optical fiber tip for FRET-based fluorescent sensors", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96346I (28 September 2015); doi: 10.1117/12.2192508; https://doi.org/10.1117/12.2192508
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