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5 March 2021 Fiber side diffuser for endo-cavity photoacoustic imaging
Hongbo Luo, Guang Yang, Quing Zhu, Kexin Huang
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Proceedings Volume 11642, Photons Plus Ultrasound: Imaging and Sensing 2021; 1164226 (2021) https://doi.org/10.1117/12.2582801
Event: SPIE BiOS, 2021, Online Only
Abstract
Homogeneous laser illumination is critical for side view photoacoustic tomography. In this paper, two homogeneous fiber side illumination methods are proposed by utilizing diffuser coating made of ultraviolet adhesive mixed with silica microspheres. One method is the gradient side diffuser, manufactured by dip coating fiber core with consecutive diffuser sections of different silica microsphere concentrations. The other method is the partially peeled-off diffuser, generated by peeling off part of the diffuser coating section on a single concentration fiber diffuser. Both methods show homogeneous laser side illumination according to simulation and experiment, with adjustable illumination length by design.
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Hongbo Luo, Guang Yang, Quing Zhu, and Kexin Huang "Fiber side diffuser for endo-cavity photoacoustic imaging", Proc. SPIE 11642, Photons Plus Ultrasound: Imaging and Sensing 2021, 1164226 (5 March 2021); https://doi.org/10.1117/12.2582801
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KEYWORDS
Diffusers
Photoacoustic imaging
Adhesives
Coating
Silica
Ultraviolet radiation
Fiber coatings
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