Broad-bandwidth frequency-domain near-infrared spectroscopy system on a chip

Siavash Yazdi; Saba Mohammadi; Shashikant Lahade; Alex Beck; Timothy Quang; Jesse H. Lam; Thomas D. O'Sullivan; Michael M. Green

doi:10.1117/12.2608961

2 March 2022 Broad-bandwidth frequency-domain near-infrared spectroscopy system on a chip

Siavash Yazdi, Saba Mohammadi, Shashikant Lahade, Alex Beck, Timothy Quang, Jesse H. Lam, Thomas D. O'Sullivan, Michael M. Green

Author Affiliations +

Proceedings Volume 11956, Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables III; 1195603 (2022) https://doi.org/10.1117/12.2608961
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

Frequency-domain near infrared spectroscopy (fd-NIRS) is used to noninvasively characterize in vivo tissue structure and molecular composition by exploiting the deep tissue penetration of red and near-infrared light. However, the size, complexity, expense, and lack of scalability of current fd-NIRS hardware has slowed its translation to clinical applications. Here we present a broad-bandwidth 1.2 x 1.2 mm fd-NIRS application-specific integrated circuit that represents a critical step toward ultrasmall, easily scalable, and wearable fd-NIRS. We present the fd-NIRS integrated circuit design as well as results showing its optical property measurements are comparable to those measured with a standard reference system.

Conference Presentation

Citation Download Citation

Siavash Yazdi, Saba Mohammadi, Shashikant Lahade, Alex Beck, Timothy Quang, Jesse H. Lam, Thomas D. O'Sullivan, and Michael M. Green "Broad-bandwidth frequency-domain near-infrared spectroscopy system on a chip", Proc. SPIE 11956, Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables III, 1195603 (2 March 2022); https://doi.org/10.1117/12.2608961

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