- retroreflecting optical unit
- световозвращающая оптическая система
English-russian dictionary of physics. 2013.
retroreflecting optical unit
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Nonlinear optics — (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the dielectric polarization P responds nonlinearly to the electric field E of the light. This nonlinearity is typically only observed… … Wikipedia
