Mid-infrared (LWIR) passive spectroscopic imaging for medical measurements like non-invasive blood glucose sensor from a distance

Ichiro Ishimaru

doi:10.1117/12.3008163

20 September 2023 Mid-infrared (LWIR) passive spectroscopic imaging for medical measurements like non-invasive blood glucose sensor from a distance

Ichiro Ishimaru

Author Affiliations +

Proceedings Volume 12608, Biomedical Imaging and Sensing Conference; 126081L (2023) https://doi.org/10.1117/12.3008163
Event: Optics and Photonics International Congress, 2023, Yokohama, Japan

Abstract

We proposed the mid-infrared passive spectroscopic imager for non-invasive blood glucose sensors from a distance. As is well known as thermography, radiation lights whose central wavelength is around 10μm are emitted from body heat. Because radiation lights are derived from resonance frequencies due to intrinsic molecular vibrations, the passive spectroscopy are able to detect emission peaks at 9.25 and 9.65μm of glucose. We constructed false color images of emission intensities at 9.65μm from human arms. And we got high correlation coefficients of glucose levels between conventional blood glucose sensors and the passive spectroscopy. We are expanding applications of the passive spectroscopic imaging to medical diagnosis like testing for malaria infected erythrocyte and amyloid β in brains etc.

Citation Download Citation

Ichiro Ishimaru "Mid-infrared (LWIR) passive spectroscopic imaging for medical measurements like non-invasive blood glucose sensor from a distance", Proc. SPIE 12608, Biomedical Imaging and Sensing Conference, 126081L (20 September 2023); https://doi.org/10.1117/12.3008163

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