Results 291 to 300 of about 4,020,412 (320)

Metamaterials and Negative Refractive Index

Science, 2004
Recently, artificially constructed metamaterials have become of considerable interest, because these materials can exhibit electromagnetic characteristics unlike those of any conventional materials.
David R. Smith, J. Pendry, M. Wiltshire
semanticscholar   +1 more source

Optical Refractive Index Sensors with Plasmonic and Photonic Structures: Promising and Inconvenient Truth

Advanced Optical Materials, 2019
Optical sensors are widely used for refractive index measurement in chemical, biomedical, and food processing industries. Due to specific field distribution of the resonances, optical sensors provide high sensitivity to ambient refractive index ...
Yi Xu, P. Bai, Xiaodong Zhou, Y. Akimov, C. Png, L. Ang, W. Knoll, Lin Wu   +7 more
semanticscholar   +1 more source

Microchannel-based plasmonic refractive index sensor for low refractive index detection.

Applied Optics, 2019
A microchannel incorporated photonic crystal fiber (PCF)-based surface plasmon resonance (SPR) sensor for detection of low refractive index (RI) at near-infrared wavelength is presented in this paper. To attain a simple and practically feasible mechanism,
E. Haque, Md. Anwar Hossain, Y. Namihira, Feroz Ahmed   +3 more
semanticscholar   +1 more source

Interspecimen Comparison of the Refractive Index of Fused Silica

, 1965
The index of refraction of optical quality fused silica (SiO2) was determined for 60 wavelengths from 0.21 to 3.71 μ at 20°C. The dispersion equation n2-1=0.6961663λ2λ2-(0.0684043)2+0.4079426λ2λ2-(0.1162414)2+0.8974794λ2λ2-(9.896161)2.where λ is ...
I. Malitson
semanticscholar   +1 more source

Exposure-dependent refractive index of Nanoscribe IP-Dip photoresist layers.

Optics Letters, 2019
The refractive indices of photoresists used for direct laser writing (DLW) have been determined after exposure to ultraviolet (UV) light. However, it was anticipated that the refractive index will differ when applying a two-photon polymerization (TPP ...
S. Dottermusch, D. Busko, Malte Langenhorst, U. Paetzold, B. Richards   +4 more
semanticscholar   +1 more source

Realization of ultrahigh refractive index in terahertz region by multiple layers coupled metal ring metamaterials

Journal Electromagnetic Waves and Applications, 2019
We report a polarization-independent unnaturally high refractive index metamaterial. It is found that the effective permittivity of the designed metamaterial can be drastically increased by the capacitive coupling effect. Also, the effective permeability
Bo Fang, Zhiyu Cai, Yandong Peng, Chenxia Li, Zhi Hong, Xufeng Jing   +5 more
semanticscholar   +1 more source

D-shaped photonic crystal fiber refractive index sensor based on surface plasmon resonance.

Applied Optics, 2017
A type of D-shaped photonic crystal fiber sensor based on surface plasmon resonance (SPR) is proposed for refractive index sensing and analyzed by the finite element method.
G. An, X. Hao, Shuguang Li, Xin Yan, Xuenan Zhang   +4 more
semanticscholar   +1 more source

Sky‐Blue Phosphorescent OLEDs with 34.1% External Quantum Efficiency Using a Low Refractive Index Electron Transporting Layer

Advances in Materials, 2016
Blue-phosphorescent organic light-emitting diodes (OLEDs) with 34.1% external quantum efficiency (EQE) and 79.6 lm W(-1) are demonstrated using a hole-transporting layer and electron-transporting layer with low refractive index values.
Hyun Shin, Jeong-Hwan Lee, Chang‐Ki Moon, Jin-Suk Huh, Bomi Sim, Jang‐Joo Kim   +5 more
semanticscholar   +1 more source

Cell refractive index for cell biology and disease diagnosis: past, present and future.

Lab on a Chip, 2016
Cell refractive index is a key biophysical parameter, which has been extensively studied. It is correlated with other cell biophysical properties including mechanical, electrical and optical properties, and not only represents the intracellular mass and ...
P. Y. Liu, P. Y. Liu, L. K. Chin, W. Ser, H. F. Chen, Chao Mao Hsieh, Chau-Hwang Lee, Kung-Bin Sung, T. Ayi, P. H. Yap, Bo Liedberg, Kuan Wang, Kuan Wang, T. Bourouina, Y. Leprince‐Wang   +14 more
semanticscholar   +1 more source