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Block Engineering’s pulsed external-cavity Quantum Cascade Lasers (QCLs) combine the optical brightness of lasers with very broad wavelength tuning to provide a breakthrough capability for spectroscopy. Over the past decade QCLs have been refined, become accepted as a spectroscopy tool, and applied to heretofore challenging sampling scenarios such as transmission through liquids or scattering off of low-reflectivity surfaces. More recent miniaturization of hardware and electronics are now enabling QCLs to become embedded in portable and hand-held instruments. This presentation will briefly review the current state of the art of QCL technology and describe systems recently developed for portable medical diagnostics and hyperspectral imaging.
Andrew Mendizabal andPeter G. Loges
"Surface analysis and hyperspectral imaging with quantum cascade lasers", Proc. SPIE 12372, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXIII, 123720H (6 March 2023); https://doi.org/10.1117/12.2655234
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Andrew Mendizabal, Peter G. Loges, "Surface analysis and hyperspectral imaging with quantum cascade lasers," Proc. SPIE 12372, Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXIII, 123720H (6 March 2023); https://doi.org/10.1117/12.2655234