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Diffraction

Articles 1 - 2 of 2

Full-Text Articles in Physics

Liquid Crystal Blazed Gratings Formed In A Single-Step Through Photo-Induced Localization Of Polymer Into A Prismatic Structure, Sang Hwa Kim, Liang-Chy Chien Apr 2004

Liquid Crystal Blazed Gratings Formed In A Single-Step Through Photo-Induced Localization Of Polymer Into A Prismatic Structure, Sang Hwa Kim, Liang-Chy Chien

Liang-Chy Chien

A liquid crystal blazed grating having a prismatic polymer microstructure has been developed. The polymer structure is fabricated by photo-induced localization and polymerization of a small concentration of monomer onto one substrate of an electro-optical cell by using ultraviolet light irradiation at 45degrees direction from normal incident. Using this method a periodical one-dimensional pattern with a prismatic shape of polymer can be formed on a one-dimensional pattern-forming state of a cholesteric host. The optical diffraction properties of the grating are evaluated by the application of electric field and light incident angles.

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Fourier Series And Optical Transform Techniques In Contemporary Optics: An Introduction, Raymond Wilson, Sean Mccreary Apr 1995

Fourier Series And Optical Transform Techniques In Contemporary Optics: An Introduction, Raymond Wilson, Sean Mccreary

Raymond Wilson

An extensively illustrated introduction to Fourier transform methods containing 280+ figures which demonstrate in 3-space the numerous basic functions of optical diffraction and imaging. Covers the mathematical terminology for wave phenomena with emphasis on spatial frequency terms. The relationship between Fraunhofer diffraction by two-dimensional functions, the Fourier transform in 3-space and use of the convolution theorem are among the subjects discussed.

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