Novel silicon etching technique crafts 3-D gradient refractive index micro-optics. ScienceDaily. Retrieved December 1, 2025 from www.sciencedaily.com / releases / 2016 / 11 / 161129153525.htm ...

WHEN a concentration gradient in a vertical column of solution, for example, an ultracentrifuge cell, is investigated by a refraction method, it is desirable to obtain a diagram relating the ...

Light bends when travelling through a concentration gradient of sugar in water. The top layer of liquid is pure water while the bottom layer is concentrated sugar water. In these layers, there is no ...

It was recently shown that large-aperture lens antennas can be designed by using gradient-index (GRIN) metamaterials and that higher directivity and gain can be obtained than with traditional ...

Please provide your email address to receive an email when new articles are posted on . MILAN — A new-generation multifocal IOL with a gradient optic offers optimal visual performance with no ...

IN NATURE of August 11, 1921, p. 745, appeared my letter in which I criticised a result stated by Mr. Mallock in NATURE of June 9, p. 456; and also a further brief letter by Mr. Mallock. Further ...

A new design of artificial lens intended to demonstrate refractive properties similar to those inherently shown by many natural lenses been developed by a US team of researchers. Based around a ...

(Nanowerk News) A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), ...

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent gradient refractive index (GRIN) ...