Nematicon

$The difference between a nonlocal and a local response. In a local medium a pointwise intensity peak such as a Dirac delta gives rise to an equally sharp spatial response in refractive index. In a nonlocal medium the refractive index change extends well past the source, similar to a diffusive system.$

In optics, a nematicon is a spatial soliton in nematic liquid crystals (NLC). The name was invented in 2003 by G. Assanto. and used thereafter Nematicons are generated by a special type of optical nonlinearity present in NLC: the light induced reorientation of the molecular director (i.e. the average molecular orientation). This nonlinearity arises from the fact that the molecular director (i.e., the optic axis of the corresponding uniaxial) tends to align along the electric field of light. Nematicons are easy to generate (with mW optical power or less ) because the NLC dielectric medium exhibits the following properties:

单词	Nematicon
释义	Nematicon 英语百科 Nematicon $The difference between a nonlocal and a local response. In a local medium a pointwise intensity peak such as a Dirac delta gives rise to an equally sharp spatial response in refractive index. In a nonlocal medium the refractive index change extends well past the source, similar to a diffusive system.$ In optics, a nematicon is a spatial soliton in nematic liquid crystals (NLC). The name was invented in 2003 by G. Assanto. and used thereafter Nematicons are generated by a special type of optical nonlinearity present in NLC: the light induced reorientation of the molecular director (i.e. the average molecular orientation). This nonlinearity arises from the fact that the molecular director (i.e., the optic axis of the corresponding uniaxial) tends to align along the electric field of light. Nematicons are easy to generate (with mW optical power or less ) because the NLC dielectric medium exhibits the following properties:
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