Results 31 to 40 of about 127,247 (297)

Nanoscale Metamaterial Optical Waveguides with Ultrahigh Refractive Indices

, 2012
We propose deep-subwavelength optical waveguides based on metal-dielectric multilayer indefinite metamaterials with ultrahigh effective refractive indices.
Babinec, Cai, Chandran, Chen, Choi, Cui, Elser, Elser, Foss, Gan, Govyadinov, Han, Huang, Jacob, Jacob, Jiang, Jie Gao, Johnson, Lin, Liu, Liu, Lu, Meng, Noginov, Noginov, Oulton, Pendry, Pendry, Sailing He, Salandrino, Schurig, Shelby, Shen, Shi, Shin, Smith, Sun, Veselago, Xiao, Xiaodong Yang, Xu, Yan, Yang, Yang, Yao, Yao, Yingran He   +46 more
core   +1 more source

Polymeric Optical Waveguide

The Review of Laser Engineering, 1992
PROBLEM TO BE SOLVED: To satisfy the transparency and heat resistance and further to fulfill the workability and optical isotropy which have been incompatible with heat resistance so far by using a specified polyurethane contg. an asymmetric spiro ring as the optical core and/or optical clad. SOLUTION: A polyurethane shown by the formula and contg.
openaire   +3 more sources

Automatic Planar Optical Waveguide Devices Packaging System Based on Polynomial Fitting Algorithm

Advances in Mechanical Engineering, 2013
This paper has proposed an automatic precise alignment coupling algorithm of planar optical waveguide devices based on polynomial fitting, and the experiment shows that for 1 × 8 planar optical waveguide splitter, the time it takes for alignment is ...
Yu Zheng, Ji-an Duan, Huaming Wang, Wenjuan Li   +3 more
doaj   +1 more source

FDTD investigation of optical integration between Si3N4 and III-V compound semiconductor based waveguide

Results in Optics
Photonic integrated circuit has recently gained significant attention due to it’s diverse innovative applications. In this paper, we investigated a passive optical coupling in a waveguide via 3D FDTD simulation. It is based on a Si3N4 waveguide and a III-
Juthika Alamgir Orpa, Al Nahid, Sunjida Sultana   +2 more
doaj   +1 more source

Controllable single-photon frequency converter via a one-dimensional waveguide

, 2014
We propose a single-photon frequency converter via a one-dimensional waveguide coupled to a $V$-type atom. The on-demand classical field allows the atom to absorb a photon with a given frequency, then emit a photon with a carried frequency different from
Li, Yong, Sun, C. P., Wang, Z. H., Zhou, Lan   +3 more
core   +1 more source

Optical spin currents in chiral optical fibers

Научно-технический вестник информационных технологий, механики и оптики
This paper is devoted to the study of optical chiral cylindrical waveguides from the point of view of their application in optical spintronics. In the paper, it is proposed to use a chiral optical cylindrical waveguide as an optical spin diode.
I. A. Deriy, D. F. Kornovan, M. I. Petrov, A. A. Bogdanov   +3 more
doaj   +1 more source

Modal reflectivity in finite-depth two-dimensional photonic-crystal microcavities [PDF]

, 1998
We present finite-difference time-domain calculations of the Q factor for an optical microcavity defined by a slab waveguide and two-dimensional photonic-crystal end mirrors.
D'Urso, Brian, O'Brien, John, Painter, Oskar, Scherer, Axel, Tombrello, Tom, Yariv, Amnon   +5 more
core   +1 more source

Magneto-optical non-reciprocal devices in silicon photonics

Science and Technology of Advanced Materials, 2014
Silicon waveguide optical non-reciprocal devices based on the magneto-optical effect are reviewed. The non-reciprocal phase shift caused by the first-order magneto-optical effect is effective in realizing optical non-reciprocal devices in silicon ...
Yuya Shoji , Tetsuya Mizumoto
doaj   +1 more source

One-dimensional description of a Bose-Einstein condensate in a rotating closed-loop waveguide [PDF]

, 2006
We propose a general procedure for reducing the three-dimensional Schrodinger equation for atoms moving along a strongly confining atomic waveguide to an effective one-dimensional equation.
Bouyer, P., Carusotto, I., Cozzini, M., Menotti, C., Schwartz, S., Stringari, S.   +5 more
core   +2 more sources

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source