Mid-infrared multispectral tissue imaging using a chalcogenide fiber supercontinuum source
Optical Society of America
© 2018 Optical Society of America
Reason for embargo
Under embargo until 22 February 2019 in compliance with publisher policy.
We present, to the best of our knowledge, the first demonstration of mid-infrared supercontinuum (SC) tissue imaging at wavelengths beyond 5 μm using a fiber-coupled SC source spanning 2–7.5 μm. The SC was generated in a tapered large-mode-area chalcogenide photonic crystal fiber in order to obtain broad bandwidth, high average power, and single-mode output for diffraction-limited imaging performance. Tissue imaging was demonstrated in transmission at selected wavelengths between 5.7 (1754 cm −1 1754 cm−1) and 7.3 μm (1370 cm −1 1370 cm−1) by point scanning over a sub-millimeter region of colon tissue, and the results were compared to images obtained from a commercial instrument.
Innovation Fund Denmark (4107-00011A); FP7 Information and Communication Technologies (ICT) (FP7-ICT 317803); Taumoses legat.
This is the author accepted manuscript. The final version is available from Optical Society of America via the DOI in this record.
Vol. 43 (5), pp. 999-1002