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- ...elvin temperatures to achieve the same sensitivity as saturated absorption spectroscopy. ==Principle of saturated absorption spectroscopy== ...7 KB (1,167 words) - 03:08, 15 September 2023
- ...Verde]]]]In [[atmospheric chemistry]], '''differential optical absorption spectroscopy (DOAS)''' is used to measure concentrations of [[trace gases]]. When combin ...substances. Several simplifications can be made. The first is to pull the absorption cross section out of the [[integral]] by assuming that it does not change s ...8 KB (1,317 words) - 01:10, 3 December 2024
- .../11303/1384 }}</ref> sometimes called broadband cavity enhanced extinction spectroscopy (IBBCEES), measures the transmission of light intensity through a stable [[ ...entation Engineering VI |chapter=Active fiber-ring enhanced absorption gas spectroscopy using multi-longitudinal mode tunable laser in the NIR |editor1-first=Yakov ...30 KB (4,170 words) - 17:02, 17 September 2024
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- ...es including [[Auger electron spectroscopy|AES]] and [[X-ray photoelectron spectroscopy|XPS]]. ...EXAFS]] and [[X-ray magnetic circular dichroism|XMCD]] the L-edge or the L absorption edge is the point where the L orbital begins to absorb x-rays. ...4 KB (504 words) - 17:27, 7 March 2023
- In [[spectroscopy]] and [[radiometry]], '''vector radiative transfer''' (VRT) is a method of ...n vector, '''''K''''' is the extinction matrix, <math>\vec a</math> is the absorption vector, ''B'' is the [[Planck function]] and '''''Z''''' is the scattering ...3 KB (444 words) - 05:36, 17 September 2018
- ...elvin temperatures to achieve the same sensitivity as saturated absorption spectroscopy. ==Principle of saturated absorption spectroscopy== ...7 KB (1,167 words) - 03:08, 15 September 2023
- ...able Path Length Transmittance Cell for Ultraviolet, Visible, and Infrared Spectroscopy and Spectroelectrochemistry|journal=Analytical Chemistry|volume=68|issue=1| ..., ε, and the concentration c of absorbing species in the material, or an [[absorption cross section]], σ, and the (number) density N of absorbers. (see Beer Lamb ...7 KB (959 words) - 11:50, 19 October 2024
- ...up>−1</sup>⋅cm<sup>−1</sup> equals 1000 cm<sup>2</sup>/mol. The molar absorption coefficient is also known as the '''molar extinction coefficient''' and '' *{{mvar|ε}} is the ''molar absorption coefficient'' of that material; ...6 KB (843 words) - 16:51, 19 January 2025
- ...o vibrational [[Raman scattering]], which is a widely used tool in optical spectroscopy, with the difference being that the wavelengths of the exciting photons fal XRS is an element-specific [[spectroscopy|spectroscopic]] tool for studying the [[electron configuration|electronic s ...5 KB (818 words) - 14:57, 23 October 2022
- '''Transient grating spectroscopy''' is an [[Optics|optical]] technique used to measure [[quasiparticle]] pro ...ich creates an interference pattern on the sample,<ref>''Transient Grating Spectroscopy'' Hoffman Group, University of Oxford, https://hofmanngroup.org/research/tr ...4 KB (481 words) - 08:48, 19 December 2024
- ...n_spectrum | emission]] or [[Absorption_spectroscopy#Absorption_spectrum | absorption spectrum]], on the column density <math>N</math>. ...ath>, increasing the thickness of the medium leads to a linear increase of absorption and the equivalent line width grows linearly <math>W \propto N</math>. Once ...3 KB (379 words) - 20:22, 27 February 2025
- [[Category:Scattering, absorption and radiative transfer (optics)]] [[Category:Infrared spectroscopy]] ...2 KB (305 words) - 21:56, 10 September 2024
- ...rst4=Maxim|last5=Friend|first5=Richard H.|date=12 March 2001|title=Optical spectroscopy of field-induced charge in self-organized high mobility poly(3-hexylthiophe [[File:CMS_setup.png|alt=|thumb|423x423px|Block diagram of charge modulation spectroscopy setup. Here the photo diode measures the transmission. A direct current plu ...12 KB (1,692 words) - 20:55, 14 August 2024
- ...Kramers]].<ref name="kramers">{{cite journal|title=On the theory of X-ray absorption and of the continuous X-ray spectrum | last=Kramers|first=H.A.|date=1923|jo [[Category:Spectroscopy]] ...3 KB (490 words) - 02:46, 9 September 2023
- ...h.jpg|thumb|A diagram indicating the equivalent width corresponding to the absorption line, which is shown in red.]] ...magnetic radiation)|emission]] or [[absorption (electromagnetic radiation)|absorption]], but when applied to emission, the value of <math>W_\lambda</math> is neg ...5 KB (736 words) - 20:15, 27 February 2025
- '''Atomic emission spectroscopy''' ('''AES''') is a method of [[chemical analysis]] that uses the intensity ...tomic emission spectroscopy |date=2020-01-01 |work=Laser-Induced Breakdown Spectroscopy (Second Edition) |pages=23–40 |editor-last=Singh |editor-first=Jagdish P. | ...11 KB (1,575 words) - 21:15, 5 February 2025
- ...pecially for the lasing structure. The Hartree–Fock approximation leads to absorption below the bandgap (below about 0.94 eV), which is a natural consequence of ...ulated emission]] than is lost by [[Absorption (electromagnetic radiation)|absorption]], the system's population density has to be inverted, see the article on [ ...10 KB (1,435 words) - 22:05, 29 December 2023
- ...particles in a solution. This technique is called photothermal correlation spectroscopy (PhoCS). ...he lensing action of the refractive index profile that is created upon the absorption of the heating laser power by the nanoparticle. The signal is homodyne in t ...9 KB (1,242 words) - 13:35, 23 January 2025
- ...ong wavelengths. The technique using this window is called [[near-infrared spectroscopy|NIRS]]. Medical imaging techniques such as [[fluorescence image-guided surg ==Absorption properties of tissue components== ...14 KB (1,934 words) - 18:00, 19 February 2025
- ...ef>{{cite journal|last=Judd|first=B. R.|journal=Phys. Rev.|title = Optical Absorption Intensities of Rare-Earth Ions|issue=3|doi=10.1103/PhysRev.127.750|volume=1 ...aces Judd and Ofelt's theory at the "forefront" of a 1960s revolution in [[spectroscopy|spectroscopic]] research on rare-earth ions.<ref name=walsh2/> ...8 KB (1,114 words) - 21:14, 4 February 2025
- ...eter |last2=Bergmann |first2=Uwe |title=High resolution 1s core hole X-ray spectroscopy in 3d transition metal complexes—electronic and structural information |jou ...uni 2016, last checked 26.02.2020</ref> In addition, ''Soft X-ray emission spectroscopy'' (SXES) is used in determining the [[electronic structure]] of materials b ...16 KB (2,324 words) - 13:29, 9 February 2025
- ...[semiconductor]]. It is evaluated by fitting the [[Attenuation coefficient|absorption coefficient]] as a function of energy to an exponential function. It is oft ..., and hence the broadness of the [[density of states]]. A sharper onset of absorption represents a lower Urbach Energy. ...8 KB (1,130 words) - 09:12, 26 February 2024
- {{Short description|Nonlinear infrared spectroscopy technique}} ...of the amide I band of peptides measured by femtosecond nonlinear-infrared spectroscopy ...12 KB (1,529 words) - 12:10, 24 May 2024