Polymer optical fibre sensors for endoscopic optoacoustic imaging

Broadway, Christian; Gallego, Daniel; Woyessa, Getinet; Pospori, Andreas; Bang, Ole; Webb, David J.; Carpintero, Guillermo and Lamela, Horacio Polymer optical fibre sensors for endoscopic optoacoustic imaging. IN: Opto-acoustic methods and applications in biophotonics II. Ntziachristos, Vasilis and Zemp, Roger (eds) Progress in biomedical optics and imaging . Bellingham, WA (US): SPIE.

Abstract

Opto-acoustic imaging (OAI) shows particular promise for in-vivo biomedical diagnostics. Its applications include cardiovascular, gastrointestinal and urogenital systems imaging. Opto-acoustic endoscopy (OAE) allows the imaging of body parts through cavities permitting entry. The critical parameter is the physical size of the device, allowing compatibility with current technology, while governing flexibility of the distal end of the endoscope based on the needs of the sensor. Polymer optical fibre (POF) presents a novel approach for endoscopic applications and has been positively discussed and compared in existing publications. A great advantage can be obtained for endoscopy due to a small size and array potential to provide discrete imaging speed improvements. Optical fibre exhibits numerous advantages over conventional piezo-electric transducers, such as immunity from electromagnetic interference and a higher resolution at small sizes. Furthermore, micro structured polymer optical fibres offer over 12 times the sensitivity of silica fibre. We present a polymer fibre Bragg grating ultrasound detector with a core diameter of 125 microns. We discuss the ultrasonic signals received and draw conclusions on the opportunities and challenges of applying this technology in biomedical applications.

Publication DOI: https://doi.org/10.1364/ECBO.2015.953907
Divisions: Engineering & Applied Sciences > Institute of Photonics
Engineering & Applied Sciences > Electrical, electronic & power engineering
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Additional Information: Christian Broadway ; Daniel Gallego ; Getinet Woyessa ; Andreas Pospori ; Ole Bang ; David J. Webb ; Guillermo Carpintero and Horacio Lamela, "Polymer optical fibre sensors for endoscopic optoacoustic imaging", Proc. SPIE 9539, Opto-Acoustic Methods and Applications in Biophotonics II, 953907 (July 16, 2015). Copyright 2015 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: http://dx.doi.org/10.1117/12.2183452 Funding: People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/ under REA grant agreement n° 608382.
Event Title: Opto-acoustic methods and applications in biophotonics II
Event Type: Other
Event Dates: 2015-06-21 - 2015-06-25
Uncontrolled Keywords: biomedical applications,endoscopy,fibre sensors,opto-acoustic imaging,polymer optical fibre,polymer optical fibre sensors,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biomaterials,Radiology Nuclear Medicine and imaging

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