Cited by 353Optical Imaging and Spectroscopy TechniquesSpectroscopy Techniques in Biomedical and Chemical ResearchSpectroscopy and Chemometric Analyses

Comment on the modified Beer–Lambert law for scattering media

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Sassaroli, Angelo, Fantini, Sergio·2004·Physics in Medicine and Biology

Abstract

We present a concise overview of the modified Beer-Lambert law, which has been extensively used in the literature of near-infrared spectroscopy (NIRS) of scattering media. In particular, we discuss one form of the modified Beer-Lambert law that is commonly found in the literature and that is not strictly correct. However, this incorrect form of the modified Beer-Lambert law still leads to the correct expression for the changes in the continuous wave optical signal associated with changes in the absorption coefficient of the investigated medium. Here we propose a notation for the modified Beer-Lambert law that keeps the typical form commonly found in the literature without introducing any incorrect assumptions.

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  1. Boas D, Franceschini M A, Dunn A K and Strangman G 2002 Noninvasive imaging of cerebral activation with diffuse optical tomography In Vivo Optical Imaging of Brain Function ed D Ron Frostig (Boca Raton, FL: CRC Press) chapter 8, pp 193-211
  2. Duderstadt J J 1979 Transport Theory (New York: Wiley)

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Authors
Sassaroli, A., & Fantini, S.
Affiliations
Tufts University (US)
Venue
Physics in Medicine and Biology
Published
2004-07-06
Volume
49
Issue
14
Pages
N255-N257
ISSN
  • 0031-9155 (ISSN-L)
  • 1361-6560
OpenAlex
W2108329838
Cited by
352
References
7
Citations by year
2026: 16 · 2025: 24 · 2024: 21 · 2023: 25 · 2022: 22 · 2021: 30 · 2020: 29 · 2019: 33 · 2018: 25 · 2017: 20 · 2016: 24 · 2015: 10 · 2014: 11 · 2013: 10 · 2012: 13
FWCI
3.07
Type
journal article
Language
en
Open access
Locations
  • Physics in Medicine and Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • National Institutes of Health
  • National Institute on Drug Abuse (DA14178, R01DA014178)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Optical Imaging and Spectroscopy Techniques
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Spectroscopy Techniques in Biomedical and Chemical Research
  • Physical Sciences › Chemistry › Analytical Chemistry › Spectroscopy and Chemometric Analyses
Keywords
modified Beer-Lambert law, turbid media, near-infrared spectroscopy, optical loss, absorption coefficient
MeSH terms
Biophysics, Image Processing, Computer-Assisted, Models, Theoretical, Scattering, Radiation, Statistics as Topic, Models, Statistical, Photons, Spectroscopy, Near-Infrared

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