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Second-harmonic imaging microscopy (SHIM) is based on a nonlinear optical effect known as second-harmonic generation (SHG). SHIM has been established as a viable microscope imaging contrast mechanism for visualization of cell and tissue structure and function. A second-harmonic microscope obtains contrasts from variations in a specimen's ability to generate second-harmonic light from the incident light while a conventional optical microscope obtains its contrast by detecting variations in optical density, path length, or refractive index of the specimen. SHG requires intense laser light passing through a material with a noncentrosymmetric molecular structure, either inherent or induced externally, for example by an electric field.

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  • Microscopie de seconde harmonique (fr)
  • Second-harmonic imaging microscopy (en)
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  • La microscopie de seconde harmonique (M2H ou (en) SHIM), aussi appelée « microscopie par génération de seconde harmonique » est basée sur un effet optique non-linéaire connu sous le nom de génération de seconde harmonique (GSH, (en) SHG): on la nomme ainsi souvent "microscopie SHG". Elle a été établie comme un mécanisme de contraste d'imagerie par microscope, utile pour la visualisation de la structure de certains tissus biologiques ou fonctions cellulaire, mais aussi de certains cristaux ferroélectriques. (fr)
  • Second-harmonic imaging microscopy (SHIM) is based on a nonlinear optical effect known as second-harmonic generation (SHG). SHIM has been established as a viable microscope imaging contrast mechanism for visualization of cell and tissue structure and function. A second-harmonic microscope obtains contrasts from variations in a specimen's ability to generate second-harmonic light from the incident light while a conventional optical microscope obtains its contrast by detecting variations in optical density, path length, or refractive index of the specimen. SHG requires intense laser light passing through a material with a noncentrosymmetric molecular structure, either inherent or induced externally, for example by an electric field. (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Cornea_muscle-ad_tendon_mice_cart-horse-surf.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/SHG_collagen_in_liver.jpg
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