We have experimentally studied the polarization-dependent transmission properties of a nanoslit in a gold film as a function of its width. The slit exhibits strong birefringence and dichroism. We find, surprisingly, that the transmission of the polarization parallel to the slit only disappears when the slit is much narrower than half a wavelength, while the transmission of the perpendicular com...

l'rircuiar polarizers have been used v for difrerent ophthalmic applications, such as ophthalmoscopy,' lens photography,' and corneai endothelial microscopy.3 To the best of our knowledge, circular polarizers have not been applied to fundus photography. A linear polarizer polarizes light in a plane. In fundus photography, it has been used to show the birefringence of the nerve fiber layero and ...

Optical metamaterials are a class of engineered materials with a wide range of material properties and an equally wide range of anticipated applications. These materials traditionally attain their unique material properties from unit cell structures or material layers which are periodically arranged. These periodic structures are often described using effective medium theory (EMT), which is bel...

Excessively high brake temperature of hydrodynamic retarders may lead to fading and failure, resulting in a decrease effectiveness. However, the performance modeling is challenge because non-linear characteristics system. In this study, model based on an artificial neural network constructed predict retarder constant-torque braking process. The developed from back-propagation trained with Leven...

The internal flow of hydrodynamic retarder is a three-dimensional, complex, viscous, and unstable gas–liquid two-phase flow. importance numerical simulation has been paid attention to, but the research on pattern rarely. Flow diagnosis plays an important role in study because premise establishing mathematical model to accurately determine structure system. Based experimental research, this foun...

In this paper, three ring networks made up of fiberribbon point-to-point links are presented. The first network is a control-channel based network in which one fiber in each link joins with others to form a controlchannel ring. This ring improves performance of the network by sending medium access control information immediately before the data transmissions. High throughputs can be achieved in...

A fast and switchable electro-optic radial polarization retarder (EO-RPR) fabricated using the electro-optic ceramic Pb(Mg(1/3)Nb(2/3))O(3)-PbTiO(3) is presented. This EO-RPR is useful for fast and switchable generation of a pure cylindrical vector beam. When used together with a pair of half-wave plates, the EO-RPR can change circularly polarized light into any cylindrical vector beam of inter...

Nulling the birefringence effect of a light signal traveling through single-mode fiber when behaves as an elliptical retarder can be achieved by winding double-helix. We present resume theory and procedures developed at CICESE to demonstrate this polarization control in systems.