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[[File:MHL.png|thumb|right|300 px|Emission spectrum of a ceramic metal halide lamp.]] ...ration of the 589 nm D₂ (left) and 590 nm D₁ (right) emission sodium D lines using a wick with salt water in a flame]] ...

...ifference that matches with the energy of a THz [[photon]]. Therefore, THz spectroscopy provides a particularly powerful method in resolving and controlling indivi ...s can be modified, e.g., via a [[nanostructure]] design. Consequently, THz spectroscopy on semiconductors is relevant in revealing both new technological potential ...

...ring by nonspherical particles: A review | journal=Journal of Quantitative Spectroscopy and Radiative Transfer | publisher=Elsevier BV | volume=55 | issue=5 | year ...rry D. | last3=Lacis | first3=Andrew A. |title=Scattering, Absorption, and Emission of Light by Small Particles |date=2002 |publisher=Cambridge University Pres ...

*[[Energy-dispersive X-ray spectroscopy]] *[[Positron emission tomography]] ...

...al properties of the randomly fluctuating currents responsible for thermal emission and demonstrated definitively that evanescent waves were responsible for su | title = Prediction of Thermal Emission and Exchange Among Neighboring Wavelength-Sized Spheres ...

...n]] in the gas phase occurs in three regions of the spectrum. [[Rotational spectroscopy|Rotational transitions]] are responsible for absorption in the [[microwave] ...combination bands occur in the [[near-infrared]] region. The [[HITRAN]] [[spectroscopy]] database lists more than 37,000 [[spectral line]]s for gaseous H<sub>2</s ...

...stance of lower work function (e.g., [[thorium]] or [[barium oxide]]), the emission can be greatly increased. This prolongs the lifetime of the filament by all ...= Z. H. | title = Pitfalls in measuring work function using photoelectron spectroscopy | doi = 10.1016/j.apsusc.2009.11.002 | journal = Applied Surface Science | ...

...imental Comparison of Fluorescence Excitation and Photodissociation Action Spectroscopy |url=https://pubs.acs.org/doi/10.1021/acs.jpca.5b04835 |journal=The Journal ...sured using sensors like UV-Vis absorption or [[Nuclear magnetic resonance spectroscopy|nuclear magnetic resonance (NMR)]] frequency changes. ...

===SPR emission=== ...sed to operate as detectors.<ref>Bakhtiar, Ray. "Surface plasmon resonance spectroscopy: a versatile technique in a biochemist’s toolbox." Journal of Chemical Educ ...

{{short description|Emission of electrons induced by an electrostatic field}} ...s. When field emission is used without qualifiers it typically means "cold emission". ...

[[File:PAC-Spectroscopy-Schema.png|thumb|right|upright=2|Schema of PAC-Spectroscopy]] The '''perturbed γ-γ angular correlation''', '''PAC''' for short or '''PAC-Spectroscopy''', is a method of nuclear solid-state physics with which [[magnetic field| ...

...on collection end. The bottom of the tether, point ''C'', is the electron emission end. Similarly, <math>V_\mathrm{anode}</math> and <math>V_\mathrm{cathode} ...hermionic cathode]], plasma cathode, plasma contactor, or [[field electron emission]] device. Since both ends of the tether are "open" to the surrounding plasm ...

'''Sound amplification by stimulated emission of radiation''' ('''SASER''') refers to a device that emits acoustic radiat ...emitted by using the process of sound amplification based on [[stimulated emission]] of [[phonon]]s. Sound (or lattice vibration) can be described by a [[phon ...

...heat).<ref name="budget" /> A gas is a [[greenhouse gas]] if it [[infrared spectroscopy|absorbs longwave radiation]]. Earth's atmosphere absorbs only 23% of incomi [[John Tyndall]] was the first to measure the infrared absorption and emission of various gases and vapors. From 1859 onwards, he showed that the effect w ...

...ondingly lower rates.<ref>The [[Stefan–Boltzmann law]] is that the rate of emission of thermal radiation is ''σT''⁴, where ''σ'' = 5.67×10<sup>−8</s ...issivities. These collectors waste very little of the solar energy through emission of thermal radiation.<ref name=Fricke1>{{cite book |title=Essentials of Ene ...

...eived as [[radio wave]]s. Subtler redshifts are seen in the [[astronomical spectroscopy|spectroscopic]] observations of [[astronomical]] objects, and are used in t ...n the spectrum such as [[spectral line|absorption lines]], [[spectral line|emission lines]], or other variations in light intensity<!--Don't link to disambigua ...

...ns were being used to make physical predictions (such as [[atomic emission spectroscopy|emissions from atoms]] being at certain discrete energies) before any physi ...

[[Deuterium]] is used in [[ultraviolet]] lamps for [[ultraviolet spectroscopy]], in [[neutron generator]] tubes, and in special tubes (e.g. [[crossatron] ...essure is low. After warming up, when the volatile compound used for light emission is vaporized and the pressure increases, reignition of the discharge requir ...

...ne - such as imaging exams ([[Nuclear magnetic resonance|NMR]], [[Positron emission tomography|PET scans]], and so on), [[Radiation therapy|radiotherapy]] and * [[History of spectroscopy]] - measuring the response of materials to energy dependent probes of light ...

...physics]], [[nuclear physics]], and [[particle physics]]; by considering [[spectroscopy]], [[diffraction]] and [[scattering]] of particles, and the electrons and n * 1958 Discovery of the [[Mössbauer effect]]: resonant and recoil-free emission and absorption of [[gamma radiation]] by atomic nuclei bound in a solid, us ...