نتایج جستجو برای: transformation optics

تعداد نتایج: 253299  

Journal: :Optics letters 2008
Alexander V Kildishev Vladimir M Shalaev

Conceptual studies and numerical simulations are performed for imaging devices that transform a near-field pattern into magnified far-zone images and are based on high-order spatial transformation in cylindrical domains. A lens translating a near-field pattern from an almost circular input boundary onto a magnified far-field image at a flat output boundary is considered. The lens is made of a m...

Journal: :Advanced materials 2015
David S Barth Christopher Gladden Alessandro Salandrino Kevin O'Brien Ziliang Ye Michael Mrejen Yuan Wang Xiang Zhang

Photoelectrochemical etching of silicon can be used to form lateral refractive index gradients for transformation optical devices. This technique allows the fabrication of macroscale devices with large refractive index gradients. Patterned porous layers can also be lifted from the substrate and transferred to other materials, creating more possibilities for novel devices.

Journal: :IOP Conference Series: Materials Science and Engineering 2013

Journal: :Communications physics 2023

Abstract The application of transformation optics to the development intriguing electromagnetic devices can produce weakly anisotropic or isotropic media with assistance quasi-conformal and/or conformal mapping, as opposed strongly produced by general mappings; however, it is typically limited two-dimensional applications. By addressing mapping between two manifolds embedded in three-dimensiona...

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