Light Extraction from Blue Luminescent Concentrator Ce:LYSO

Bethan Ford; Lisa Lopez; Sophia Long; Catherine  Le Blanc; Pascal  Loiseau; Bruno  Viana; Juna Sathian; Francois  Balembois

doi:10.1364/OE.553612

Light Extraction from Blue Luminescent Concentrator Ce:LYSO

Bethan Ford^*, Lisa Lopez, Sophia Long, Catherine Le Blanc , Pascal Loiseau, Bruno Viana, Juna Sathian, Francois Balembois

^*Corresponding author for this work

Mathematics, Physics and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We present different strategies for optimizing the light emitted by a LED-pumped Ce:LYSO luminescent concentrator. This optimization includes a spectroscopic analysis and different methods to collect the light guided in the luminescent concentrator towards the output. An optical-optical efficiency of 14.1 % is achieved, 4 times better than previous results. Various architectures are proposed for a high-power broadband blue light source, either in a linear or circular output, delivered after fiber coupling. UV LED panels with a total peak power of 3405 W, emitting at 365 nm, are used as pump sources. In quasi-continuous mode (20 µs, 1 Hz), an output power of up to 305 W in the blue spectrum is achieved, while more than 2 W can be delivered in pure continuous mode. This performance opens up applications in medical imaging or optical metrology, as well as the replacement of aging technologies such as xenon flash lamps.

Original language	English
Journal	Optics Express
DOIs	https://doi.org/10.1364/OE.553612
Publication status	Accepted/In press - 7 Apr 2025

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LightExtraction_CeLYSO_Pure
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Cite this

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title = "Light Extraction from Blue Luminescent Concentrator Ce:LYSO",

abstract = "We present different strategies for optimizing the light emitted by a LED-pumped Ce:LYSO luminescent concentrator. This optimization includes a spectroscopic analysis and different methods to collect the light guided in the luminescent concentrator towards the output. An optical-optical efficiency of 14.1 % is achieved, 4 times better than previous results. Various architectures are proposed for a high-power broadband blue light source, either in a linear or circular output, delivered after fiber coupling. UV LED panels with a total peak power of 3405 W, emitting at 365 nm, are used as pump sources. In quasi-continuous mode (20 µs, 1 Hz), an output power of up to 305 W in the blue spectrum is achieved, while more than 2 W can be delivered in pure continuous mode. This performance opens up applications in medical imaging or optical metrology, as well as the replacement of aging technologies such as xenon flash lamps.",

author = "Bethan Ford and Lisa Lopez and Sophia Long and {Le Blanc}, Catherine and Pascal Loiseau and Bruno Viana and Juna Sathian and Francois Balembois",

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T1 - Light Extraction from Blue Luminescent Concentrator Ce:LYSO

AU - Ford, Bethan

AU - Lopez, Lisa

AU - Long, Sophia

AU - Le Blanc , Catherine

AU - Loiseau, Pascal

AU - Viana, Bruno

AU - Sathian, Juna

AU - Balembois, Francois

PY - 2025/4/7

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N2 - We present different strategies for optimizing the light emitted by a LED-pumped Ce:LYSO luminescent concentrator. This optimization includes a spectroscopic analysis and different methods to collect the light guided in the luminescent concentrator towards the output. An optical-optical efficiency of 14.1 % is achieved, 4 times better than previous results. Various architectures are proposed for a high-power broadband blue light source, either in a linear or circular output, delivered after fiber coupling. UV LED panels with a total peak power of 3405 W, emitting at 365 nm, are used as pump sources. In quasi-continuous mode (20 µs, 1 Hz), an output power of up to 305 W in the blue spectrum is achieved, while more than 2 W can be delivered in pure continuous mode. This performance opens up applications in medical imaging or optical metrology, as well as the replacement of aging technologies such as xenon flash lamps.

AB - We present different strategies for optimizing the light emitted by a LED-pumped Ce:LYSO luminescent concentrator. This optimization includes a spectroscopic analysis and different methods to collect the light guided in the luminescent concentrator towards the output. An optical-optical efficiency of 14.1 % is achieved, 4 times better than previous results. Various architectures are proposed for a high-power broadband blue light source, either in a linear or circular output, delivered after fiber coupling. UV LED panels with a total peak power of 3405 W, emitting at 365 nm, are used as pump sources. In quasi-continuous mode (20 µs, 1 Hz), an output power of up to 305 W in the blue spectrum is achieved, while more than 2 W can be delivered in pure continuous mode. This performance opens up applications in medical imaging or optical metrology, as well as the replacement of aging technologies such as xenon flash lamps.

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