is heated Applications Light emitting diode s LEDs emit light via electro luminescence Phosphor s, emitting ... www.princetoninstruments.com Uploads Princeton Images lumi chart.jpg Luminescence chart http scienceworld.wolfram.com physics Luminescence.html Luminescence on Scienceworld http www.fluorophores.org Fluorophores.org The database of luminescent dyes Category Luminescence Category Light sources ar ... et Luminestsents el es Luminiscencia fa fr Luminescence ko hi hr Luminiscencija ... more details
No footnotes date March 2012 Negative luminescence is a physical phenomenon by which an electronic device emits less thermal radiation when an electric current is passed through it than it does in thermal equilibrium current off . When viewed by a thermal camera , an operating negative luminescent device looks colder than its environment. Physics Negative luminescence is most readily observed in semiconductor s. Incoming infrared radiation is absorbed in the material by the creation of an electron hole pair . An electric field is used to remove the electrons and holes from the region before they have a chance to recombine and re emit thermal radiation. This effect occurs most efficiently in regions of low charge carrier density. Negative luminescence has also been observed in semiconductors in orthogonal electric and magnetic fields. In this case, the junction of a diode is not necessary and the effect can be observed in bulk material. A term that has been applied to this type of negative luminescence is galvanomagnetic luminescence . Negative luminescence might appear to be a violation ... 8 12 m negative luminescence using HgCdTe mercury cadmium telluride diode s. Later the Naval Research Laboratory , Washington DC , started work on negative luminescence in mercury cadmium telluride ... Applications of negative luminescence , T. Ashley, C. Thomas Elliott C. T. Elliott , N. T. Gordon ... doi 10.1016 S1350 4495 96 00038 2 Negative luminescence and its applications , C. T. Elliott, Philosophical ... 2001 doi 10.1098 rsta.2000.0743 Galvanomagnetic luminescence of indium antimonide , P. Berdahl and L ... luminescence of semiconductors , P. Berdahl, V. Malyutenko, and T. Morimoto, Infrared Physics ISSN ... Negative luminescence.htm Negative luminescence from InAsSbP based diodes in the 4.0 5.3 m range http www.articleworld.org index.php Negative Luminescence Negative Luminescence in semiconductors Category Semiconductors Category Luminescence Category Infrared imaging ... more details
Orphan date February 2009 Commonly referred as phosphorescence, persistent luminescence is the phenomenon encountered in materials which make them glow in the dark after the end of an Excited state excitation with UV or visible light. Mechanism The mechanism underlying this phenomenon is not fully understood ref T. Aitasalo, P. Deren, J. H ls , H. Jungner, J.C. Krupa, M. Lastusaari, J. Legendziewicz, J. Niittykoski, and W. Strek. Persistent luminescence phenomena in materials doped with rare earth ions. J. Solid State Chem. , 171 114, 2003 . ref . However, the phenomenon of persistent luminescence must not be mistaken with fluorescence and phosphorescence see for definitions ref http goldbook.iupac.org F02453.html IUPAC Gold Book fluorescence Bot generated title ref and ref http goldbook.iupac.org P04569.html IUPAC Gold Book phosphorescence Bot generated title ref . Indeed, in fluorescence, the lifetime of the excited state is in the order of a few nanoseconds and in phosphorescence, even if the lifetime of the emission can reach several seconds, the reason of the long emission is due to the deexcitation between two electronic states of different spin multiplicity . For persistent luminescence, it has been known for a long time that the phenomenon involved energy traps such as electron or hole trap in a material ref H.W. Leverenz. Luminescent solids phosphors . Science , 109 183 189, 1949 . ref which are filled during the excitation. After the end of the excitation, the stored energy is gradually released to emitter centers which emit light usually by a fluorescence like mechanism. Examples of use Persistent luminescence materials are mainly used in safety signs, watch dials, decorative objects and toys. They have also been used as nanoprobes in small animal optical imaging ..., M. Bessodes and D. Scherman. Nanoprobes with near infrared persistent luminescence for in vivo ... paint Strontium aluminate Category Luminescence ... more details
title Single Reviews publisher Tastyfanzine.org.uk date accessdate 2012 02 29 ref Luminescence ... Luminescence Category Neon Highwire albums Category 2009 EPs 2000s alt rock album stub ... more details
Infobox Journal cover File Journal of Luminescence.gif discipline Physics abbreviation JOL website http www.sciencedirect.com science journal 00222313 publisher Elsevier country ... history 1975 to present ISSN 0022 2313 Journal of Luminescence ISSN 0953 4075 is a peer review ed scientific journal , published semi monthly. The journal covers topics related to the emission of light luminescence exciton and polariton dynamics, dynamics of localized excited state s, energy transport in ordered and disordered systems, radiative and non radiative Carrier generation and recombination recombination , relaxation process es, vibronic interactions in electronic excited states, photochemistry in condensed system s, excited state resonance , double resonance, selective excitation spectroscopy, coherent processes in excited states, e.g. coherent optical transients, photon echo s, transient gratings, multiphoton processes such as optical bistability , hole burning , photochromism, multiphoton spectroscopy , new techniques for the study of excited state s, etcetera. External links http www.sciencedirect.com science journal 00222313 Science Direct listing Category Elsevier academic journals Category Optics journals Luminescence, Journal of Category Publications established in 1968 physics journal stub ... more details
Refimprove date January 2007 Infobox album See Wikipedia WikiProject Albums Name Luminescence Type studio Artist Anggun Cover FrontaLumina.jpg Released February 2005 br August 2006 Special Edition Recorded 2004 2006 Genre Urban music Urban , Pop music Pop , Rock music Rock , Contemporary R&B Length Label Heben Music, Sony BMG , Universal Music Universal Producer Reviews Last album Open Hearts album Open Hearts br 2002 This album Luminescence br 2005 Next album Best Of Anggun album Best Of br 2006 Misc Extra album cover Upper caption Alternative cover Type studio Cover Album luminescence.jpg Lower caption English version cover Singles Name Luminescence Type studio single 1 tre une femme France ... rev1Score rev1Score rating 4.5 5 ref http www.sputnikmusic.com album 50223 Anggun LuminescenceLuminescence ... rating 5 5 ref http www.guitartabsexplorer.com anggun reviews B000AY9OX0 Luminescence Better impossible . guitartabsexplorer.com . Retrieved January 25, 2012. ref Luminescence is the third international ... came back with her third international studio album entitled Luminescence . Signing out from Columbia ... songs into French language French . Both versions of Luminescence , French and English, shared ... of the album, Anggun re released the album in 2006 as Luminescence Special Edition both in English ... 1. A La Decouverte de Luminescence Behind The Music Special 2. tre une femme Music Video France Special ... Also featured in the Transporter 2 soundtrack Juste Avant Toi The new single from Luminescence Special Edition Garde Moi The second single from Luminescence Special Edition International Singles Undress ... 2 soundtrack Mantra Saviour s Indonesian Version I ll Be Alright The new single from Luminescence Special Edition A Crime The second single from Luminescence Special Edition References Reflist Anggun DEFAULTSORT Luminescence Album Category 2005 albums Category English language albums Category French language albums Category Anggun albums id Luminescence ms Luminescence zh Luminescence ... more details
Photostimulated luminescence PSL is the release of stored energy within a phosphor by stimulation with visible light, to produce a luminescent signal. Commonly this is used to allow the storage of a weak radioactive signal in a phosphor plate that takes the place of X ray film, potentially over a prolonged period, which PSL transforms to obtain a highly sensitive image of the original pattern of radiation. Also known as an image plate , a photostimulable phosphor PSP plate can be used record a two dimensional image of the intensity short electromagnetic spectrum wavelength typically, X ray electromagnetic radiation . The device to read such a plate is known as a phosphorimager occasionally abbreviated to phosphoimager , perhaps reflecting its common application in molecular biology of detecting radiolabel ed phosphorylated proteins and nucleic acids . Creating an image requires illuminating the Photographic plate plate twice the first exposure, to the radiation of interest, writes the image, and a later, second illumination typically by a visible wavelength laser reads the image. Basic Explanation After the initial exposure, excited electrons in the phosphor material remain trapped in colour centres in the crystal crystal structure lattice until stimulated by the second illumination. For example, Fuji s photostimulable phosphor is deposited on a flexible polyester film support with grain size about 5 micrometers , and is described as barium fluorobromide containing a trace amount of bivalent europium as a luminescence center . Europium is a divalent cation that replaces barium to create a solid solution . When Eu sup 2 sup ions are struck by ionizing radiation, they lose an additional electron to become Eu sup 3 sup ions. These electrons enter the conduction band of the crystal .... As these mobilized electrons encounter Eu sup 3 sup ions, they release a blue violet 400 nm luminescence ... image . This process is also known as Photostimulable Luminescence PSL . Unlike film , a PSP plate can ... more details
Unreferenced date December 2009 Orphan date December 2009 Infobox Album See Wikipedia WikiProject Albums Name Luminous Luminescence in the Atlas Position Type Album Artist Anathallo Cover Llitap.jpg Released 2001 Recorded Genre Indie rock Length 31 56 Label None Producer Reviews Last album This album Luminous Luminescence in the Atlas Position br 2001 Next album Sparrows LP Sparrows br 2002 Luminous Luminescence in the Atlas Position is the first album from the band Anathallo . In the original release, each CD was hand crafted by the band to include a booklet over 20 pages long and included a date stamping documenting when purchased. Track listing To Renew, Cause to Grow, Or Bloom Again 4 44 At Lowest Point 3 53 But Without Love 4 41 Snowman 5 23 Mardi Gras 5 44 ...in the Atlas Position 4 11 Luminous Luminescence... 3 20 DEFAULTSORT Luminous Luminescence In The Atlas Position Category 2001 debut albums 2000s indie rock album stub ... more details
Cerenkov luminescence imaging is an emerging imaging modality, similar to bioluminescence imaging , that captures visible photons emitted by Cherenkov radiation . References Refbegin cite journal first1 G. S. last1 Mitchell first2 R. K. last2 Gill first3 D. L. last3 Boucher first4 S. R. last4 Cherry journal Physical Transactions of the Royal Society A volume 369 page 4605 year 2011 title In vivo Cerenkov luminescence imaging a new tool for molecular imaging issue 1955 doi 10.1098 rsta.2011.0271 Refend Category Imaging Electromagnetism stub measurement stub ... more details
merge to Optical dating discuss Talk Optical dating Merger proposal date January 2011 In physics , optically stimulated luminescence OSL is a method for measuring doses from ionizing radiation . The method makes use of electron s trapped between the valence and conduction bands in the crystal line structure of certain types of matter such as quartz , feldspar , and aluminum oxide . The trapping sites are imperfections of the lattice impurities or crystallographic defect defects . The ionizing radiation produces electron hole pairs electrons are in the conduction band and holes in the valence band . The electrons which have been excited to the conduction band may become entrapped in the electron or hole traps. Under stimulation of light the electrons may free themselves from the trap and get into the conduction band. From the conduction band they may recombine with holes trapped in hole traps. If the centre with the hole is a luminescence centre radiative recombination centre emission of light will occur. The photon s are detected using a photomultiplier tube. The signal from the tube is then used to calculate the dose that the material had absorbed. OSL is used in at least two different applications optical dating of ancient materials mainly geological sediments, but also sometimes fired pottery, bricks etc., although in the latter case thermoluminescence dating is used more often radiation dosimetry , which is the measurement of accumulated radiation dose in the tissues of health care, nuclear, research and other workers, as well as in building materials in regions of nuclear disaster In order to carry out OSL dating, mineral grains have to be extracted from the sample. Most commonly these are so called coarse grains 100 200 m, or fine grains 4 11 m. Occasionally other grain sizes are used. The difference between radiocarbon dating and OSL is that the former is used to date organic materials, while the latter is used to date minerals. Events that can be dated usi ... more details
Glow in the dark may refer to Bioluminescence , the production and emission of light by a living organism Chemiluminescence , is the emission of light luminescence without emission of heat Phosphorescence , a specific type of photoluminescence related to fluorescence Radioluminescence , production of luminescence in a material by the bombardment of ionizing radiation Glow in the Dark Tour , a 2008 concert tour by Kanye West disambiguation ... more details
Unreferenced auto yes date December 2009 Galvanoluminescence Is the emission of light produced by the passage of an electrical current through an appropriate electrolyte in which an electrode , made of certain metals such as aluminium or tantalum , has been immersed. An example being the electrolysis of sodium bromide NaBr . Category Luminescence Category Materials science Physics stub ... more details
wiktionary OEL OEL is an initialism. It may be used to refer to Organic light emitting diode Organic Electro Luminescence Original English language manga Oracle Enterprise Linux Occupational exposure limit Oxford English Limited Oliver Ekman Larsson , Swedish professional ice hockey player for the Phoenix Coyotes disambig it OEL ... more details
Infobox single See Wikipedia WikiProject Songs Name Juste Avant Toi Cover Anggun Juste Avant Toi Single Cover.jpg Artist Anggun from Album Luminescence album Luminescence Released 2006 Format CD Single Recorded 2006 Length Genre pop music Pop Label Sony BMG Producer Chart position Last single This single Juste Avant Toi 2006 Next single Misc Extra album cover Upper caption Alternative cover Type single Cover Juste avant toi remixes.jpg Lower caption Official Single Cover Juste Avant Toi is the first single from Special Edition Album of Luminescence album Luminescence by Anggun in 2006. Track listing CD single Juste avant toi Ultra edition Juste Avant Toi Album Single Version Juste Avant Toi Teetof Dance Radio Edit I ll Be Alright Cesse la Pluie FB Cool s Lounge Remix Juste Avant Toi Video Track Remixes Juste Avant Toi Teetoff s Dance Ext. Remix Juste Avant Toi Da Gunners Ragga Remix Juste Avant Toi Teetoff s Dance Radio Edit Juste Avant Toi Da Gunners Ragga Radio Edit Juste Avant Toi Original Mix Anggun DEFAULTSORT Juste Avant Toi Category 2006 singles Category French language songs Category Anggun songs id I ll Be Alright ... more details
Crystalloluminescence is the effect of luminescence produced during crystallization . The abstract of an article by B. P. Chandra, V. Kalia and S. C. Datt of Rani Durgavati University Jabulpur, India , entitled Crystalloluminescence a new tool to determine the critical size of a crystal nucleus , states There is a time lag between the achievement of supersaturation in a solution and the appearance of crystalloluminescence flashes from crystal nuclei. The incubation time of crystalloluminescence decreases systematically with the concentration of the solution. A new method based on crystalloluminescence measurements is proposed for the determination of the critical size of the crystal nucleus. Sources http www.iop.org EJ abstract 0022 3727 18 12 001 Journal of Physics D Applied Physics Category luminescence Category Light sources physical chemistry stub ... more details
wiktionarypar lumina lumin Lumina may refer to Chevrolet Lumina Lumina Foundation for Education Lumina, Constan a , a commune in Constan a County, Romania Lumina , a literary journal published by Sarah Lawrence College One of the eight Elemental Spirits in the Super Nintendo game Secret of Mana Lumina, the Sword of Luminescence an elemental sword wielded by the titular protagonist, Brave Fencer Musashi , for the Sony Playstation . The plural form of Lumen anatomy A song by Joan Osborne from Relish album Relish Editura Lumina , a Moldova n publishing house disambig ... more details
mergefrom optically stimulated luminescence discuss Talk Optical dating Merger proposal date January 2011 Optical dating is a method of determining how long ago mineral s were last exposed to daylight. It is useful to geologist s and archaeologist s who want to know when such an event occurred. Alternate names sometimes used are optically stimulated luminescence dating OSL dating and photoluminescence dating PL dating . Conditions and accuracy Ages can be determined typically from 300 to 100,000 years BP, and can be reliable when suitable methods are used and proper checks are done. Ages can be obtained outside this range, but they should be regarded with caution. The accuracy obtainable under optimum circumstances is about 5 . Citation needed date September 2009 The optical dating method relies on the assumption that the mineral grains were sufficiently exposed to sunlight before they were buried. This is usually, but not always, the case with Aeolian processes Aeolian deposits, such as sand dunes and loess , and some water laid deposits. All sediment s and soil s contain trace amounts ... using either blue, green or infrared light causes a luminescence signal to be emitted as the stored ... of radioactive elements in the sample. Exposure to sunlight resets the luminescence signal ..., basalt and sandstone, and this has proved possible. The initiator of ancient buildings luminescence .... Murray. A review of quartz optically stimulated luminescence characteristics and their relevance in single ... using luminescence, Radiation Measurements 32, 847 851 Liritzis, . 1994 A new dating method by thermoluminescence ... Andros Island, Greece New evidence of Cycladic Final Neolithic dated by novel luminescence and Obsidian ..., 9, 1 13 Morgenstein, M.E, Luo, S, Ku, T.L, and Feathers J., 2003 Uranium series and luminescence ... Science, 24, 399 405 External links http www.aber.ac.uk quaternary luminescence labs.htm Aberystwyth Luminescence Research Laboratory has links to many optical dating laboratories Chronology ... more details
Steve does not play any instruments ref Luminescence 14 December 2009, Neon Highwire digitally released their debut EP titled Luminescence EP Luminescence to mostly positive reviews. ref http www.subba cultcha.com features article.php?contentID 17962 Subba Cultcha review of Luminescence ref ref http ... of Luminescence ref ref http rebelriffs.blogspot.com 2010 02 neon highwire luminescence ep.html Rebel Riffs review of Luminescence ref The release was self recorded and mastered at The Exchange studio ... ref Later in the year on December 10, 2010, the song Neon Blink originally from the Luminescence ... EPs Luminescence EP Luminescence 2009 Singles Bear At The Bus Stop 2010 Neon Blink 2010 Spin Off 2011 ... more details
Infobox scientist name Marcel Vogel image MarcelVogel.jpg image size 180px caption birth date birth date 1917 4 14 mf y birth place San Francisco , California death date 1991 death place San Jose, California San Jose , California residence United States nationality United States American field Chemistry br Physics erdos number work institution Vogel Luminescence br IBM alma mater doctoral advisor doctoral students known for Luminescence br Liquid crystal system br Magnetics societies prizes spouse children religion New Age handedness website footnotes Marcel Joseph Vogel 1917 1991 was a research scientist working at the IBM San Jose, California San Jose Advanced Systems Development Division Los Gatos Lab actually located in San Jose for some 27 years. He is sometimes referred to as Dr. Vogel, this title was an honorary degree honorary doctoral degree , Doctor of Philosophy Ph.D. . It is claimed that Vogel started his research into luminescence while he was still in his teens. This research eventually led him to publish his thesis, Luminescence in Liquids and Solids and Their Practical Application , in collaboration with Chicago University s Dr. Peter Pringsheim in 1943. Two years after the publication, Vogel incorporated his own company, Vogel Luminescence, in San Francisco . For the next decade the firm developed a variety of new products fluorescent crayon s, tags for insecticide s, a black light inspection kit to determine the secret trackways of rodent s in cellars from their urine and the psychedelic color s popular in new age posters. In 1957, Vogel Luminescence was sold to Ultra Violet Products and Vogel joined IBM as a full time research scientist. He received numerous patent s Citation needed date April 2010 for his inventions. Among these was the magnetic coating for the 24 hard disk drive systems still in use. His areas of expertise, besides luminescence, were phosphor technology, magnetic s and liquid crystal systems. He also designed the vogel crystal, ... more details
Unreferenced date December 2009 A luminophore is an atom or atomic grouping in a chemical compound that manifests luminescence . There exist organic and inorganic luminophores. It should be stressed that the correct, textbook terminology is luminophore , not lumophore , although the latter term has been frequently but erroneously used in the chemical literature. Luminophores can be divided into two subcategories fluorophore s and phosphor s. The difference between luminophores belonging to these two subcategories is derived from the nature of the excited state responsible for the emission of photon s. Some luminophores, however, cannot be classified as being exclusively fluorophore s or phosphors and exist in the gray area in between. Such cases include transition metal complexes such as ruthenium tris 2,2 bipyridine whose luminescence comes from an excited nominally triplet metal to ligand charge transfer MLCT state, but which is not a true triplet state in the strict sense of the definition and colloidal quantum dots , whose emissive state does not have either a purely singlet or triplet spin. Most luminophores consist of Conjugated system conjugated pi systems or transition metal complexes. There exist purely inorganic luminophores, such as zinc sulfide doped with rare earth metal ions, rare earth metal oxysulfides doped with other rare earth metal ions, yttrium oxide doped with rare earth metal ions, zinc orthosilicate doped with manganese ions, etc. Luminophores can be observed in action in fluorescent lights, TV screens, computer monitor screens, organic light emitting diode s and bioluminescence . Category Luminescence Category Chemical compounds be be x old cs Luminofor de Luminophor et Luminofoor fr Luminophore kk lt Liuminiforas pl Luminofor ru sk Luminofor uk ... more details
Luminescent bacteria emit light as the result of a chemical reaction during which chemical energy is converted to light energy. Luminescent bacteria exist as symbiotic organisms carried within a larger organism, such as many deep sea organisms, including the Lantern Fish , the Angler fish , certain jellyfish , certain clam s and the Gulper eel . The light is generated by an enzyme catalyzed chemoluminescence reaction, wherein the pigment luciferin is oxidisation oxidised by the enzyme luciferase . The expression of gene s related to bioluminescence is controlled by an operon called the lux operon . Some species of luminescent bacteria possess quorum sensing, the ability to determine local population by the concentration of chemical messengers. Species which have quorum sensing can turn on and off certain chemical pathways, commonly luminescence in this way, once population levels reach a certain point the bacteria switch off light production ref http www.ncbi.nlm.nih.gov pubmed 10398554 Autoinduction of light emission in different species of bioluminescent bacteria . Luminescence 1999, 14 1 3 9. ref Characteristics of the phenomenon Bioluminescence is a form of luminescence , or cold light light emission emission less than 20 of the light generates thermal radiation . It should not be confused with fluorescence , phosphorescence or refraction of light. Most forms of bioluminescence are lighter or only exist at night, following a circadian rhythm . See also Dinoflagellate s Vibrionaceae e.g. Vibrio fischeri , Vibrio harveyi , Photobacterium phosphoreum Vibrio phosphoreum References reflist 2 External links http www.rhizobium.net environmental microbiology sites.htm h8 Bioluminescence Lecture Notes http lifesci.ucsb.edu biolum Bioluminescence Webpage http www.disknet.com indiana biolab b203.htm Isolation of Vibrio phosphoreum http www.biology.pl bakterie sw index en.html Luminescent Bacteria http siobiolum.ucsd.edu Biolum intro.html Scripps Institution of Oceanography ... more details
wiktionary luminous Luminous may refer to Luminous EP Luminous EP , the sixth release from American Futurepop band Cesium 137 Luminous story collection Luminous story collection , a 1998 short story collection by Greg Egan Luminous, LLC , a contact lens company with headquarters in Portland, Oregon A music album by Chris Murphy violinist A music album by Bill Nelson musician Luminous game engine , a video game engine developed by Square Enix See also intitle Luminance Luminescence Luminosity Lumines , video game disambig ... more details
Unreferenced stub auto yes date December 2009 Orphan date November 2006 att April 2012 Lumibrite is a luminous paint used on some models of Seiko watch es. It has also been used in some models of Citizen Watch Co. Citizen , Lorus watch Lorus , and Pulsar watch Pulsar watches. This is a new kind of Luminescence Luminescent paint that glows brighter for longer than the previous generation of luminescent paints, and is environmentally friendly non radioactive decay radioactive . See also Luminous paint Category Brand name materials Industry stub ... more details
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