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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 ...
Certain heating pads have been marketed to provide "far infrared" therapy, which is claimed to offer deeper penetration. [citation needed] However, the infrared radiation emitted by an object is determined by its temperature. [citation needed] Therefore, all heating pads emit the same type of infrared radiation if they are at the same ...
In infrared photography, the photographic film or image sensor used is sensitive to infrared light. The part of the spectrum used is referred to as near-infrared to distinguish it from far-infrared, which is the domain of thermal imaging. Wavelengths used for photography range from about 700 nm to about 900 nm. Film is usually sensitive to ...
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 .
In infrared photography, infrared filters are used to capture the near-infrared spectrum. Digital cameras often use infrared blockers. Cheaper digital cameras and camera phones have less effective filters and can view intense near-infrared, appearing as a bright purple-white color. This is especially pronounced when taking pictures of subjects ...
A VNIR image of the Ghadamis River in Libya.This is a false-color composite image made using near-infrared, green, and blue wavelengths. The visible and near-infrared (VNIR) portion of the electromagnetic spectrum has wavelengths between approximately 400 and 1100 nanometers (nm). [1]
Definition of sociotherapy as a social science and profession is also based on regional dicta. For example, the public health insurance system of Germany offered a uniquely German definition in order to subsidize treatment by sociotherapeutic professionals. It said that sociotherapy "designates non-medical, social, and work-related components ...
Hyperspectral imaging is also used in zoology; it is used to investigate the spatial distribution of coloration and its extension into the near-infrared and SWIR range of the spectrum. [29] Some animals for example, such as some tropical frogs and certain leaf-sitting insects are highly reflective in the near-infrared. [29] [30]