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- Spaser abstract "Spaser (/ˈspeɪzər/) is a phenomenon that was first described by Bergman and Stockman in 2003. The name is an acronym for surface plasmon amplification by stimulated emission of radiation. The first such device was announced in August 2009, a 44-nanometer-diameter nanoparticle with a gold core surrounded by a dyed silica gain medium, created by researchers from Purdue, Norfolk State and Cornell universities.The spaser is a proposed nanoscale source of optical fields that is being investigated in a number of leading laboratories around the world. If realized, spasers could find a wide range of applications, including nanoscale lithography, probing and microscopy.From Nature Photonics:A spaser is the nanoplasmonic counterpart of a laser, but it (ideally) does not emit photons. It is analogous to the conventional laser, but in a spaser photons are replaced by surface plasmons and the resonant cavity is replaced by a nanoparticle, which supports the plasmonic modes. Similarly to a laser, the energy source for the spasing mechanism is an active (gain) medium that is excited externally. This excitation field may be optical and unrelated to the spaser’s operating frequency; for instance, a spaser can operate in the near-infrared but the excitation of the gain medium can be achieved using an ultraviolet pulse.The reason that surface plasmons in a spaser can work analogously to photons in a laser is that their relevant physical properties are the same. First, surface plasmons are bosons: they are vector excitations and have spin 1, just as photons do. Second, surface plasmons are electrically neutral excitations. And third, surface plasmons are the most collective material oscillations known in nature, which implies they are the most harmonic (that is, they interact very weakly with one another). As such, surface plasmons can undergo stimulated emission, accumulating in a single mode in large numbers, which is the physical foundation of both the laser and the spaser.Study of the quantum mechanical model of the spaser suggests that it should be possible to manufacture a spasing device analogous in function to the MOSFET transistor, but this has not yet been experimentally verified.Nano-optics is now undergoing a period of explosive growth where new ideas, developments and impressive results appear literally on a daily basis. It is concerned with the science of concentrating optical energy into regions with subwavelength dimensions (typically tens of nanometres).".
- Spaser wikiPageID "18952779".
- Spaser wikiPageLength "3579".
- Spaser wikiPageOutDegree "18".
- Spaser wikiPageRevisionID "678491728".
- Spaser wikiPageWikiLink Boson.
- Spaser wikiPageWikiLink Bosons.
- Spaser wikiPageWikiLink Category:Condensed_matter_physics.
- Spaser wikiPageWikiLink Gold.
- Spaser wikiPageWikiLink Infrared.
- Spaser wikiPageWikiLink Laser.
- Spaser wikiPageWikiLink List_of_plasma_(physics)_articles.
- Spaser wikiPageWikiLink MOSFET.
- Spaser wikiPageWikiLink Nano-optics.
- Spaser wikiPageWikiLink Nanolithography.
- Spaser wikiPageWikiLink Nanometer.
- Spaser wikiPageWikiLink Nanometre.
- Spaser wikiPageWikiLink Nanophotonics.
- Spaser wikiPageWikiLink Nanoscale.
- Spaser wikiPageWikiLink Nanoscopic_scale.
- Spaser wikiPageWikiLink Optical_field.
- Spaser wikiPageWikiLink Photon.
- Spaser wikiPageWikiLink Photons.
- Spaser wikiPageWikiLink Silica.
- Spaser wikiPageWikiLink Silicon_dioxide.
- Spaser wikiPageWikiLink Spin_(physics).
- Spaser wikiPageWikiLink Stimulated_emission.
- Spaser wikiPageWikiLink Surface_plasmon.
- Spaser wikiPageWikiLink Ultraviolet.
- Spaser wikiPageWikiLinkText "SPASER".
- Spaser wikiPageWikiLinkText "Spaser".
- Spaser wikiPageWikiLinkText "spaser".
- Spaser hasPhotoCollection Spaser.
- Spaser wikiPageUsesTemplate Template:IPAc-en.
- Spaser wikiPageUsesTemplate Template:Quantum-stub.
- Spaser wikiPageUsesTemplate Template:Quote.
- Spaser wikiPageUsesTemplate Template:Reflist.
- Spaser subject Category:Condensed_matter_physics.
- Spaser hypernym Phenomenon.
- Spaser type Disease.
- Spaser type Mechanic.
- Spaser type Physic.
- Spaser comment "Spaser (/ˈspeɪzər/) is a phenomenon that was first described by Bergman and Stockman in 2003. The name is an acronym for surface plasmon amplification by stimulated emission of radiation.".
- Spaser label "Spaser".
- Spaser sameAs Spaser.
- Spaser sameAs Spaser.
- Spaser sameAs m.04jkrht.
- Spaser sameAs Спазер.
- Spaser sameAs Q3966061.
- Spaser sameAs Q3966061.
- Spaser wasDerivedFrom Spaser?oldid=678491728.
- Spaser isPrimaryTopicOf Spaser.