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11-16 April 2026
Conference 13006 > Paper 13006-59
Paper 13006-59

CANCELED: Dual-Comb based perturbation localization in a highly dispersive media: towards DC-fNIRS.

11 April 2024 • 13:40 - 14:00 CEST | Etoile B, Niveau/Level 1

Abstract

This paper introduces and validates a novel dual-comb functional Near-Infrared Spectroscopy (DC-fNIRS) technique, marking a significant advancement in the field of Near-Infrared Spectroscopy. DC-fNIRS distinguishes itself by its ability to accurately measure the diffuse time of flight (DTOF) within dispersive media in transmission and, for the first time, in backscattering configurations. The study demonstrates the technique's capability in spatially localizing perturbations within turbid media, showcasing its potential as a cost-effective alternative to traditional methods like functional Magnetic Resonance Imaging (fMRI). Employing a novel experimental setup involving dual Optical Frequency Combs generated from a single continuous wave laser source, the study captures intricate details of DTOF. This methodology allows for a comprehensive analysis of DTOF temporal evolution, enhancing our understanding of light propagation in complex media. The results obtained not only validate the effectiveness of the DC-fNIRS technique but also open new avenues for its application in non-invasive monitoring of brain activity and other critical biological processes.

Presenter

Arquimea Research Ctr. (Spain)
Application tracks: EU-funded Research
Presenter/Author
Arquimea Research Ctr. (Spain)
Author
Arquimea Research Ctr. (Spain)
Author
Pedro Martin-Mateos
Univ. Carlos III de Madrid (Spain)
Author
Arquimea Research Ctr. (Spain)
Author
Univ. de La Laguna (Spain)
Author
Arquimea Research Ctr. (Spain), Univ. Carlos III de Madrid (Spain)