Results 41 to 50 of about 55,761 (298)

Nanorod photonic crystal ring resonators

open access: yesOptics Express, 2022
In this study, we shed light on the properties of a photonic ring resonator made up of a closed array of circular dielectric nanorods arranged periodically in a background material. This type of resonator can reach high-quality factors (Q-factor) for specific transverse-magnetic (TM)-like modes, while maintaining a small footprint.
Dolf Timmerman   +2 more
openaire   +2 more sources

TWO-LAYERED QUASIOPTICAL SAPPHIRE RESONATOR FOR BIOLIQUIDS DIELECTROMETRY [PDF]

open access: yesРадиофизика и электроника, 2017
WGM resonators can be used for studies of condensed matter, especially for the study of the dielectric liquids properties. However, the electromagnetic properties of the real resonator structures are not well understood.
А. А. Barannik   +2 more
doaj   +1 more source

Design and analysis of multi-channel drop filter using dual L defected hexagonal photonic crystal ring resonator

open access: yesDigital Communications and Networks, 2020
In this paper, dual L defected hexagonal Photonic Crystal Ring Resonator (PCRR) using Channel Drop Filter (CDF) is designed for Coarse Wavelength Division Multiplexing (CWDM) systems.
D. Saranya, Shoba Mohan, A. Rajesh
doaj   +1 more source

Semi-self-pumped phase-conjugate mirrors [PDF]

open access: yes, 1987
We describe semi-self-pumped photorefractive phase-conjugate mirrors based on the unidirectional ring resonator and the double phase-conjugate mirror.
Cronin-Golomb, Mark, Yariv, Amnon
core   +1 more source

A Novel Dual-Mode Dual-Band Bandpass Filter Based on a Single Ring Resonator [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2020
In this paper, a dual-mode bandpass filter that operates in two different bands is proposed. A circular patch with a small circular hole is set as the basic resonator, and, as the circular hole moves, the linewidth of the ring resonator becomes non ...
Youngje Sung
doaj   +1 more source

Design and fabrication of a polymer micro ring resonator with laser beam direct write lithography technique [PDF]

open access: yes, 2010
In this article, we describe our work on design and fabrication of a polymer Micro Ring Resonator. This device has been constructed by laser beam direct write lithography technique (LBL).We used ORMOCORE photoresist for fabricating a micro ring resonator
Latifi, Hamid   +2 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Theoretical Investigation of Terahertz Spoof Surface-Plasmon-Polariton Devices Based on Ring Resonators

open access: yesPhotonics
Terahertz is one of the most promising technologies for high-speed communication and large-scale data transmission. As a classical optical component, ring resonators are extensively utilized in the design of band-pass and frequency-selective devices ...
Can Liu   +5 more
doaj   +1 more source

Dual-Band Reconfigurable Antenna for Polarization Diversity

open access: yesInternational Journal of Antennas and Propagation, 2018
This paper proposes a dual-band reconfigurable square-ring antenna with a polarization diversity property. The proposed antenna consists of a square-ring resonator, two stubs with a shorting via, and two PIN diodes.
Youngje Sung
doaj   +1 more source

Integrated multi vector vortex beam generator

open access: yes, 2013
A novel method to generate and manipulate vector vortex beams in an integrated, ring resonator based geometry is proposed. We show numerically that a ring resonator, with an appropriate grating, addressed by a vertically displaced access waveguide emits ...
Boyd, Robert W.   +3 more
core   +2 more sources

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