Results 11 to 20 of about 82,242 (274)

Blue-light filtering spectacle lenses for visual performance, sleep, and macular health in adults [PDF]

, 2019
This is a protocol for a Cochrane Review (Intervention). The objectives are as follows: To assess whether blue-light filtering spectacle lenses impart effects on visual function, provide protection to the macula, or both.
Busija, L., Downie, L. E., Hull, C., Keller, P. R., Lawrenson, J. G.   +4 more
core   +1 more source

Hybridization of optical plasmonics with terahertz metamaterials to create multi-spectral filters [PDF]

, 2013
Multi-spectral imaging systems typically require the cumbersome integration of disparate filtering materials in order to work simultaneously in multiple spectral regions.
Cumming, D.R.S., Drysdale, T.D., Grant, J., McCrindle, I.J.H.   +3 more
core   +1 more source

Rapid and Precise Wavelength Determination Approach Based on Visually Patterned Integrated Narrow Bandpass Filters

IEEE Photonics Journal, 2019
We report a rapid and precise spectral determination approach based on visually patterned integrated narrow bandpass filters. The wavelength of light can be determined accurately even by naked eyes in the aid of the device.
Zhiyi Xuan, Ying Zhi, Shaowei Wang, Yi Zhang, Yuanliao Zheng, Junyu Li, Feng Liu, Yiqun Xie, Yuwei Chen, Wangzhou Shi, Fei Yi, Wei Lu   +11 more
doaj   +1 more source

Design of fiber-integrated tunable thermo-optic C-band filter based on coated silicon slab

Journal of the European Optical Society-Rapid Publications, 2017
Background Optical filters are required to have narrow band-pass filtering in the spectral C-band for applications such as signal tracking, sub-band filtering or noise suppression.
H. Pinhas, D. Malka, Y. Danan, M. Sinvani, Z. Zalevsky   +4 more
doaj   +1 more source

Simultaneous Interrogation of Multiple Fiber Bragg Grating Sensors Using an Arrayed Waveguide Grating Filter Fabricated in SOI Platform

IEEE Photonics Journal, 2015
A novel fiber Bragg grating (FBG) interrogator is demonstrated based on an optimized arrayed waveguide grating (AWG) filter. The AWG response is optimized to achieve large crosstalk between the output channels, which allows simultaneous detection of ...
Andrea Trita, Eli Voet, Jan Vermeiren, Danae Delbeke, Pieter Dumon, Shibnath Pathak, Dries Van Thourhout   +6 more
doaj   +1 more source

Compact Microring-Based Wavelength-Selective Inline Optical Reflector [PDF]

, 2005
We present a novel design for a compact planar integrated optic reflector based on a microring resonator add–drop wavelength-selective filter. Good agreement is found between the theoretical expectation and the measurements of a device fabricated in ...
Paloczi, George T., Scheuer, Jacob, Yariv, Amnon   +2 more
core   +1 more source

Ultra High Q and Widely Tunable Mie Resonance Nanofilter at Telecom Wavelengths

IEEE Photonics Journal, 2021
Mie resonators offer a novel way for the subwavelength localization of light, showing large local field enhancement without metal optical absorption. In this paper, an ultra-high quality factor Q and widely tunable Mie resonance nanofilter at telecom ...
Danyang Yao, Yong Zhang, Yan Huang, Yan Liu, Genquan Han, Yue Hao   +5 more
doaj   +1 more source

Diffractive sidewall grating coupler: towards 2D free-space optics on chip. [PDF]

, 2019
Silicon photonics has been the subject of intense research efforts. In order to implement complex integrated silicon photonic devices and systems, a wide range of robust building blocks is needed.
Cheben, Pavel, Hadij-ElHouati, Abdelfettah, Halir, Robert, Molina-Fernandez, Iñigo, Ortega-Moñux, Alejandro, Schmid, J.H., Wanguemert-Perez, Juan Gonzalo   +6 more
core   +1 more source

Design of Single-Band Bandpass Filter Using Photonic Bandgap Fiber by Suppressing Core Modes in Higher Order Bandgaps

IEEE Photonics Journal, 2015
We present two designs of all-solid photonic bandgap fiber (PBGF) for higher order bandgap suppression to realize a unique transmission window for optical filtering purposes.
Zahra Kakaie, Barmak Honarvar Shakibaei, Yong Meng Sua, Desmond M. Chow, Ghafour Amouzad Mahdiraji, Faisal Rafiq Mahamd Adikan   +5 more
doaj   +1 more source

Fresnel Lenses fabricated by femtosecond laser micromachining on Polymer 1D Photonic Crystal

MATEC Web of Conferences, 2013
We report the fabrication of micro Fresnel lenses by femtosecond laser surface ablation on polymer 1D photonic crystals. This device is designed to focus the transmitted wavelength of the photonic crystal and filter the wavelengths corresponding to the ...
Guduru Surya S.K., Scotognella Francesco, Criante Luigino, Vazquez Rebeca Martinez, Ramponi Roberta, Vishnubhatla Krishna   +5 more
doaj   +1 more source