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- Second-harmonic_generation abstract "Second harmonic generation (also called frequency doubling or abbreviated SHG) is a nonlinear optical process, in which photons with the same frequency interacting with a nonlinear material are effectively \"combined\" to generate new photons with twice the energy, and therefore twice the frequency and half the wavelength of the initial photons. Second harmonic generation, as an even-order nonlinear optical effect, is only allowed in mediums without inversion symmetry. It is a special case of sum frequency generation.Second harmonic generation was first demonstrated by Peter Franken, A. E. Hill, C. W. Peters, and G. Weinreich at the University of Michigan, Ann Arbor, in 1961. The demonstration was made possible by the invention of the laser, which created the required high intensity coherent light. They focused a ruby laser with a wavelength of 694 nm into a quartz sample. They sent the output light through a spectrometer, recording the spectrum on photographic paper, which indicated the production of light at 347 nm. Famously, when published in the journal Physical Review Letters, the copy editor mistook the dim spot (at 347 nm) on the photographic paper as a speck of dirt and removed it from the publication. The formulation of SHG was initially described by N. Bloembergen and P. S. Pershan at Harvard in 1962. In their extensive evaluation of Maxwell's equations at the planar interface between a linear and nonlinear medium, several rules for the interaction of light in non-linear mediums were elucidated.Generating the second harmonic, often called frequency doubling, is also a process in radio communication; it was developed early in the 20th century, and has been used with frequencies in the megahertz range. It is a special case of frequency multiplication.".
- Second-harmonic_generation thumbnail Energy_level_scheme_of_SHG.png?width=300.
- Second-harmonic_generation wikiPageExternalLink frequency_doubling.html.
- Second-harmonic_generation wikiPageID "7334318".
- Second-harmonic_generation wikiPageLength "20291".
- Second-harmonic_generation wikiPageOutDegree "35".
- Second-harmonic_generation wikiPageRevisionID "705702795".
- Second-harmonic_generation wikiPageWikiLink Birefringence.
- Second-harmonic_generation wikiPageWikiLink Category:Nonlinear_optics.
- Second-harmonic_generation wikiPageWikiLink Category:Second-harmonic_generation.
- Second-harmonic_generation wikiPageWikiLink Compositing.
- Second-harmonic_generation wikiPageWikiLink Confocal_microscopy.
- Second-harmonic_generation wikiPageWikiLink Cornea.
- Second-harmonic_generation wikiPageWikiLink Frequency.
- Second-harmonic_generation wikiPageWikiLink Frequency_multiplier.
- Second-harmonic_generation wikiPageWikiLink Lamina_cribrosa_sclerae.
- Second-harmonic_generation wikiPageWikiLink Laser.
- Second-harmonic_generation wikiPageWikiLink Laser_pointer.
- Second-harmonic_generation wikiPageWikiLink Maxwells_equations.
- Second-harmonic_generation wikiPageWikiLink Mode-locking.
- Second-harmonic_generation wikiPageWikiLink Monopotassium_phosphate.
- Second-harmonic_generation wikiPageWikiLink Nonlinear_optics.
- Second-harmonic_generation wikiPageWikiLink Periodic_poling.
- Second-harmonic_generation wikiPageWikiLink Peter_Franken.
- Second-harmonic_generation wikiPageWikiLink Photon.
- Second-harmonic_generation wikiPageWikiLink Quasi-phase-matching.
- Second-harmonic_generation wikiPageWikiLink Rhodamine.
- Second-harmonic_generation wikiPageWikiLink Slowly_varying_envelope_approximation.
- Second-harmonic_generation wikiPageWikiLink Spectrometer.
- Second-harmonic_generation wikiPageWikiLink Sum-frequency_generation.
- Second-harmonic_generation wikiPageWikiLink University_of_Michigan.
- Second-harmonic_generation wikiPageWikiLink Wave_vector.
- Second-harmonic_generation wikiPageWikiLink Wavelength.
- Second-harmonic_generation wikiPageWikiLink File:Electron_asymmetric_motion_animation.gif.
- Second-harmonic_generation wikiPageWikiLink File:Energy_level_scheme_of_SHG.png.
- Second-harmonic_generation wikiPageWikiLink File:SHG_from_small_sphere.png.
- Second-harmonic_generation wikiPageWikiLink File:SHG_phenol_air-water.png.
- Second-harmonic_generation wikiPageWikiLink File:Second_Harmonic_Generation.svg.
- Second-harmonic_generation wikiPageWikiLinkText "Frequency doubling (SHG)".
- Second-harmonic_generation wikiPageWikiLinkText "Frequency doubling".
- Second-harmonic_generation wikiPageWikiLinkText "SHG".
- Second-harmonic_generation wikiPageWikiLinkText "Second Harmonic Generation".
- Second-harmonic_generation wikiPageWikiLinkText "Second-Harmonic Generation".
- Second-harmonic_generation wikiPageWikiLinkText "Second-harmonic generation".
- Second-harmonic_generation wikiPageWikiLinkText "frequency doubled".
- Second-harmonic_generation wikiPageWikiLinkText "frequency doubling".
- Second-harmonic_generation wikiPageWikiLinkText "frequency-doubling".
- Second-harmonic_generation wikiPageWikiLinkText "second".
- Second-harmonic_generation wikiPageWikiLinkText "second-harmonic generation".
- Second-harmonic_generation wikiPageUsesTemplate Template:Cite_web.
- Second-harmonic_generation wikiPageUsesTemplate Template:Main.
- Second-harmonic_generation wikiPageUsesTemplate Template:Reflist.
- Second-harmonic_generation subject Category:Nonlinear_optics.
- Second-harmonic_generation subject Category:Second-harmonic_generation.
- Second-harmonic_generation hypernym Process.
- Second-harmonic_generation type Election.
- Second-harmonic_generation comment "Second harmonic generation (also called frequency doubling or abbreviated SHG) is a nonlinear optical process, in which photons with the same frequency interacting with a nonlinear material are effectively \"combined\" to generate new photons with twice the energy, and therefore twice the frequency and half the wavelength of the initial photons. Second harmonic generation, as an even-order nonlinear optical effect, is only allowed in mediums without inversion symmetry.".
- Second-harmonic_generation label "Second-harmonic generation".
- Second-harmonic_generation sameAs Q1455635.
- Second-harmonic_generation sameAs Генерация_на_втора_хармонична.
- Second-harmonic_generation sameAs Frequenzverdopplung.
- Second-harmonic_generation sameAs Génération_de_seconde_harmonique.
- Second-harmonic_generation sameAs 第二次高調波発生.
- Second-harmonic_generation sameAs Antrosios_harmonikos_generacija.
- Second-harmonic_generation sameAs Generacja_drugiej_harmonicznej.
- Second-harmonic_generation sameAs m.025zhmk.
- Second-harmonic_generation sameAs Генерация_второй_оптической_гармоники.
- Second-harmonic_generation sameAs Optično_podvajanje_frekvenc.
- Second-harmonic_generation sameAs Q1455635.
- Second-harmonic_generation wasDerivedFrom Second-harmonic_generation?oldid=705702795.
- Second-harmonic_generation depiction Energy_level_scheme_of_SHG.png.
- Second-harmonic_generation isPrimaryTopicOf Second-harmonic_generation.