* Many other forms of spectroscopy also rely upon Fourier Transforms to determine the three-dimensional structure and / or identity of the sample being analyzed, including Infrared and Nuclear Magnetic Resonance spectroscopies.

Infrared spectroscopy ( IR spectroscopy ) is the spectroscopy that deals with the infrared region of the electromagnetic spectrum, that is light with a longer wavelength and lower frequency than visible light.

Infrared spectroscopy exploits the fact that molecules absorb specific frequencies that are characteristic of their structure.

* Infrared spectroscopy

* Infrared spectroscopy of metal carbonyls

Tungsten-halogen lamps are frequently used as a near-infrared light source in Infrared spectroscopy.

Infrared spectroscopy yields similar, but complementary, information.

This dependence on the polarizability differs from Infrared spectroscopy where the interaction between the molecule and light is determined by the dipole moment ; this contrasting feature allows to analyze transitions that might not be IR active via Raman spectroscopy, as exemplified by the rule of mutual exclusion in centrosymmetric molecules.

* Infrared spectroscopy and Raman spectroscopy are other common spectroscopic techniques, usually used to obtain information about the structure of compounds or to identify compounds.

# Infrared spectroscopy shows ν ( O-O ) of 755 cm < sup >- 1 </ sup >

; NIRC-2: The second generation Near Infrared Camera works with the Keck Adaptive Optics system to produce the highest-resolution ground-based images and spectroscopy in the 1 – 5 micrometers ( µm ) range.

** Infrared spectroscopy

Infrared and ultraviolet-visible spectroscopy are particularly common in analytical applications.

* Infrared spectroscopy of metal carbonyls

* Infrared spectroscopy

# REDIRECT Infrared spectroscopy

Unlike NMR, Infrared and UV-Visible spectroscopies, microwave spectroscopy has not yet found widespread application in analytical chemistry.

* Infrared spectroscopy

Infrared spectroscopy observations have demonstrated that the nucleus of the Sombrero Galaxy is probably devoid of any significant star formation activity.

# REDIRECT Infrared spectroscopy

Infrared radiation in the spectral distribution of a black body is usually considered a form of heat, since it has an equivalent temperature, and is associated with an entropy change per unit of thermal energy.

Infrared sensing in snakes depends on a kind of natural thermal imaging, in which tiny packets of cellular water are raised in temperature by the infrared radiation.

Infrared satellite imagery can be used effectively for tropical cyclones with a visible eye pattern, using the Dvorak technique, where the difference between the temperature of the warm eye and the surrounding cold cloud tops can be used to determine its intensity ( colder cloud tops generally indicate a more intense storm ).

* AIRS — Atmospheric Infrared Sounder — measures atmospheric temperature and humidity, land and sea surface temperatures.

Infrared energy is continually exchanged between " hot " and " cold " surfaces until all surfaces have reached the same temperature ( equilibrium ).

Infrared searches are more useful for finding more distant ( higher redshift ) clusters.

Infrared imaging cameras are used to detect heat loss in insulated systems, to observe changing blood flow in the skin, and to detect overheating of electrical apparatus.

Infrared LEDs are also used in the remote control units of many commercial products including televisions, DVD players, and other domestic appliances.

The two kinds of wireless technologies used for WPAN are Bluetooth and Infrared Data Association.

Infrared and ultraviolet are also greatly blocked.

The high data speeds of UMTS are now most often utilised for Internet access: experience in Japan and elsewhere has shown that user demand for video calls is not high, and telco-provided audio / video content has declined in popularity in favour of high-speed access to the World Wide Web — either directly on a handset or connected to a computer via Wi-Fi, Bluetooth, Infrared or USB.

Infrared and terahertz-wave cameras are capable of creating images through clothing, though these images differ from what would be created with visible light.

In some areas, emergency responders are provided with specialized equipment, such as an Mobile Infrared Transmitter, which allows emergency response vehicles, particularly fire fighting apparatus, to have high-priority travel by having the lights along their route change to green.

Infrared and optical astronomy are often practiced using the same telescopes, as the same mirrors or lenses are usually effective over a wavelength range that includes both visible and infrared light.

Infrared light is absorbed at many wavelengths by water vapor in the Earth's atmosphere, so most infrared telescopes are at high elevations in dry places, above as much of the atmosphere as possible.

Infrared and red laser diodes are common in CD players, CD-ROMs and DVD technology.

Infrared observation has shown there are no bodies of three or more Jupiter masses in this system.

Infrared cut-off filters, sometimes called IR filters or heat-absorbing filters, are designed to reflect or block mid-infrared wavelengths while passing visible light.

Most of the time is used by the UKIRT Infrared Deep Sky Survey, but some 60 + nights per year are used by Korean institutes.

As of 2011, the engineers are working on the High-resolution Airborne Wideband Camera ( HAWC ), which will be an integral part of Stratospheric Observatory for Infrared Astronomy ( SOFIA ).

Infrared pictures depict ocean eddies or vortices and map currents such as the Gulf Stream which are valuable to the shipping industry.

Infrared thermography ( IRT ), thermal imaging, and thermal video are examples of infrared imaging science.

* Infrared cameras for detecting exhaust streams and other sources of heat and are useful in monitoring shipping movements and fishing activity.

Infrared observations are usually made with telescopes similar to the familiar optical telescopes.