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Search Results: Optics

Narrowly, the science of light and vision; broadly, the study of the phenomena associated with the generation, transmission, and detection of...
The study of optical devices that are based on light transmission in planar waveguides, that is, dielectric structures that confine the propagating...
Refraction is one of the most fundamental phenomena in nature. It gives rise to such well-known effects as the apparent bending of objects partly...
A fast, compact, wide-field optical system that uses a thin aspheric front lens at the center of curvature of a larger concave spherical mirror. The...
An extensive visual investigation by the artist David Hockney, supported by optical evidence detailed in subsequent technical papers, shows that...
Nonlinear optics (in 'Adaptive optics' article)
Nonlinear optical devices function as conjugate mirrors in which the output beam is a replica of the input except that it travels in exactly the rever
Active optics (in 'Adaptive optics' article)
Active optics is employed to maintain the accuracy of the primary mirror surface to a fraction of the wavelength of the radiation being observed. Such
Angle between optic axes (in 'Crystal optics' article)
One of the quantities used to describe a biaxial crystal or to identify a biaxial mineral is the angle between the optic axes. This can be calculated
Paraxial optics (in 'Geometrical optics' article)
The above discussion of the properties of the ideal image-forming system did not consider the optical properties of the system where the ray paths are


= Encyclopedia Article; = Research Update
Figure 1.Cross section of Schmidt camera with aspherical corrector plate. (After J. M. Pasachoff, Astronomy: From the Earth to the Universe, 6th ed., Brooks/Cole Publishing, 2002)
From Encyclopedia article 'Schmidt camera'
Figure 1.Optical waveguide. (a) Optical intensity of the fundamental guided mode. (b) Ray picture of the guided mode.
From Encyclopedia article 'Integrated optics'
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