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2. Near-infrared spectroscopy - Wikipedia

   en.wikipedia.org/wiki/Near-infrared_spectroscopy

   Near-IR absorption spectrum of dichloromethane showing complicated overlapping overtones of mid IR absorption features.. Near-infrared spectroscopy (NIRS) is a spectroscopic method that uses the near-infrared region of the electromagnetic spectrum (from 780 nm to 2500 nm). [1]

3. Near-infrared window in biological tissue - Wikipedia

   en.wikipedia.org/wiki/Near-infrared_window_in...

   The near-infrared (NIR) window (also known as optical window or therapeutic window) defines the range of wavelengths from 650 to 1350 nanometre (nm) where light has its maximum depth of penetration in tissue. [1] Within the NIR window, scattering is the most dominant light-tissue interaction, and therefore the propagating light becomes diffused ...

4. Functional near-infrared spectroscopy - Wikipedia

   en.wikipedia.org/wiki/Functional_near-infrared...

   This toolbox is a set of Matlab-based tools for the analysis of functional near-infrared spectroscopy (fNIRS). This toolbox defines the +nirs namespace and includes a series of tools for signal processing, display, and statistics of fNIRS data. This toolbox is built around an object-oriented framework of Matlab classes and namespaces. [18]

5. Time-domain diffuse optics - Wikipedia

   en.wikipedia.org/wiki/Time-domain_diffuse_optics

   Time-domain diffuse optics [1] or time-resolved functional near-infrared spectroscopy is a branch of functional near-Infrared spectroscopy which deals with light propagation in diffusive media. There are three main approaches to diffuse optics namely continuous wave [ 2 ] (CW), frequency domain [ 3 ] (FD) and time-domain [ 4 ] (TD).

6. Diffuse correlation spectrometry - Wikipedia

   en.wikipedia.org/wiki/Diffuse_correlation...

   With these considerations in mind, the first methodology used to measure blood flow is near-infrared spectroscopy (NIRS). It is based on a well known spectral window that exists in the near-infrared (NIR, 700-900 nm) where tissue absorption is relatively low so that light can penetrate into deep/thick volumes of tissue, up to several centimeters.

7. Diffuse optical imaging - Wikipedia

   en.wikipedia.org/wiki/Diffuse_optical_imaging

   Diffuse optical imaging (DOI) is a method of imaging using near-infrared spectroscopy (NIRS) [1] or fluorescence-based methods. [2] When used to create 3D volumetric models of the imaged material DOI is referred to as diffuse optical tomography, whereas 2D imaging methods are classified as diffuse optical imaging.

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9. The Unscrambler - Wikipedia

   en.wikipedia.org/wiki/The_Unscrambler

   The Unscrambler X is a commercial software product for multivariate data analysis, used for calibration of multivariate data which is often in the application of analytical data such as near infrared spectroscopy and Raman spectroscopy, and development of predictive models for use in real-time spectroscopic analysis of materials.