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15 February 2006 Hollow-optical fiber probe for confocal Raman endoscopy
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A confocal Raman probe based on a silver hollow optical fiber is developed to apply in remote optical biopsy via a micro-endoscope. The probe consists of a single hollow optical fiber delivering both the excitation and the Raman scattered light, and a confocal end unit attached at the distal end of the fiber. We demonstrate a high spatial resolution remote Raman measurement with the present probe. The measured spectrum shows a depth-resolution of below 0.15 μm. In addition, we propose a ball lens coupled miniature high-resolution Raman probe and show that it operates as well as the confocal probe.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Takashi Katagiri, Yuichi Komachi, Yusuke Hattori, Yuji Matsuura, Mitsunobu Miyagi, Hideo Tashiro, and Hidetoshi Sato "Hollow-optical fiber probe for confocal Raman endoscopy", Proc. SPIE 6083, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications VI, 60830E (15 February 2006);

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