Near-infrared spectroscopy - Wikipedia
Near-infrared spectroscopy is used in astronomy for studying the atmospheres of cool stars where molecules can form. The vibrational and rotational signatures of molecules such as titanium oxide, cyanide, and carbon monoxide can be seen in this wavelength range and can give a clue towards the star's spectral type .
Near InfraRed Spectrograph (NIRSpec) - Science@NASA
NIRSpec detects near-infrared wavelengths and is capable of observing more than 100 objects simultaneously. The NIRSpec is the first spectrograph in space that has this remarkable multi-object capability.
NASA SVS | Webb's Near Infrared Spectrograph (NIRSpec) …
Feb 28, 2022 · The Near InfraRed Spectrograph (NIRSpec) will operate over a wavelength range of 0.6 to 5 microns. A spectrograph (also sometimes called a spectrometer) is used to disperse light from an object into a spectrum.
Reflected Near-Infrared Waves - Science@NASA
Aug 10, 2016 · Scientists can graph the measurements, examine the unique patterns of absorption and reflection of visible and infrared energy, and use this information to identify types of plants. The graph below shows the differences among the spectral signatures of corn, soybeans, and Tulip Poplar trees.
Below is a graph depicting the prominent absorption bands as they relate to the over tone and combination bands of the fundamental vibrations occurring in the Mid IR region.
Functional near infrared spectroscopy for brain functional …
Apr 1, 2023 · Functional Near-Infrared Spectroscopy is an optical brain monitoring technique which uses NIRS to perform functional neuroimaging. It uses near-infrared light for measuring brain activity and to estimate the cortical hemodynamic activity in the brain due to motor activity.
Graph of near-infrared overtone absorptions, peaks and …
Below is a graph depicting the prominent absorption bands as they relate to the overtone and combination bands of the fundamental vibrations occurring in the Mid IR region.
What does NIRS measure? NIRS contrast arises from the absorption hemoglobin of near-infrared light propagating diffusively through the head, yielding information about cerebral blood volume, flow, and oxygenation. NIRS has emerged as a safe, non-invasive, flexible technology complementary to other brain imaging and monitoring modalities.
(PDF) Near Infra Red Spectroscopy - ResearchGate
Jul 7, 2011 · Near-infrared (NIR) spectroscopy is a promising technique for on-scene illicit-drug detection because of its rapid analysis, non-invasive nature, broad scope to detect various substances, and...
An Introduction to Near Infrared Spectroscopy
Jun 30, 2014 · Near infrared spectroscopy is used where multicomponent molecular vibrational analysis is required in the presence of interfering substances. The near infrared spectra consist of overtones and combination bands of the fundamental …