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Kevin A. Bors , Sabbir Liakat, Anna P. M. Michel, and Claire F. Gmachl

Study of Mid-Infrared Light Scattering Due to Skin for a Non-Invasive Glucose Monitor with an Automated Setup. Kevin A. Bors , Sabbir Liakat, Anna P. M. Michel, and Claire F. Gmachl. MIRTHE and General Motivations for Research. Quantum Cascade Lasers More efficient energy solutions

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Kevin A. Bors , Sabbir Liakat, Anna P. M. Michel, and Claire F. Gmachl

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  1. Study of Mid-Infrared Light Scattering Due to Skin for a Non-Invasive Glucose Monitor with an Automated Setup Kevin A. Bors, Sabbir Liakat, Anna P. M. Michel, and Claire F. Gmachl

  2. MIRTHE and General Motivations for Research • Quantum Cascade Lasers • More efficient energy solutions • Field testing • Good for developing countries • Mid-Infrared Technologies for Health and the Environment

  3. Specific Motivation for Research • Diabetes patients 1036 1080 1106 1152 Example absorption spectrum of glucose

  4. Experimental Setup • BARD (bi-axial rotation device) • QCL (Quantum Cascade Laser)

  5. Experimental Setup • Close-up of BARD setup

  6. Variables Controlled by Program: Axis of rotation Range and precision of angular movements of that axis Position of other axis Range and Precision of Wavenumber Movements Program Capabilities

  7. Results of an Automated Scan Measuring Reflected Light as a Function of Position Backscattered Light Intensity for Incidence φ=40° • Example scan using program

  8. Results of an Automated Scan Measuring Reflected Light as a Function of Position • Light is Scattered by Dermis (Inner Layer of Skin) • Glucose here proportional to level in blood • Absorption Spectroscopy

  9. Summary, Future Work, and Acknowledgements • Non-invasive glucose sensing • Automation of BARD • Independent work • Thanks to PEI, MIRTHE, and Professor Gmachl’s Group

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