نتایج جستجو برای: ring resonators

تعداد نتایج: 129956  

2018
Sébastien Guenneau Alexander Movchan Natasha Movchan S. Guenneau A. B. Movchan N. V. Movchan

We present band diagrams for in-plane elastic waves propagating within a doubly periodic structure involving Split Ring Resonators. From the Navier equations we derive that the lowest resonant frequencies are associated with localised bending modes solutions of a fourth order differential equation in thin bridges, which are responsible for the appearance of a low frequency stop band. Potential ...

2003
Michael Hamacher Ute Troppenz Helmut Heidrich Dominik Gerhard Rabus

Compact integrated microring resonators are promising candidates for various applications in optical signal processing and communication such as optical filters, wavelength (de)multiplexers, single mode sources, dispersion compensators and wavelength converters. Active GaInAsP/InP material is particularly suited for the fabrication of "lossless" filter devices as well as novel laser components ...

2012
Michal BLÁHA Jan MACHÁČ

This paper presents the results of an investigation into a combination of electric and magnetic planar resonators in order to design the building element of a volumetric metamaterial showing simultaneously negative electric and magnetic polarizabilities under irradiation by an electromagnetic wave. Two combinations of particular planar resonators are taken into consideration. These planar reson...

2016
JAYANTA KUMAR RAKSHIT JITENDRA NATH ROY

In this paper, the possibility of using a silicon waveguide based microring resonator as a nonlinear all-optical switch is described under low power operation through a two-photon absorption effect. All-optical multiplexer/demultiplexer scheme based on two cascaded microring resonators has been proposed and described. The proposed circuits require smaller number of ring resonators and a single ...

2017
Weilin Liu Ming Li Robert S Guzzon Erik J Norberg John S Parker Mingzhi Lu Larry A Coldren Jianping Yao

Mode control in a laser cavity is critical for a stable single-mode operation of a ring laser. In this study we propose and experimentally demonstrate an electrically pumped parity-time (PT)-symmetric microring laser with precise mode control, to achieve wavelength-tunable single-mode lasing with an improved mode suppression ratio. The proposed PT-symmetric laser is implemented based on a photo...

2017
Qinglong Meng Zheqiang Zhong Bin Zhang

The optically tunable properties of the hybrid three-dimensional (3D) metamaterials with dual- and broadband response frequencies are theoretically investigated in the terahertz spectrum. The planar double-split-ring resonators (DSRRs) and the standup double-split-ring resonators are fabricated on a sapphire substrate, forming a 3D array structures. The bi-anisotropy of the hybrid 3D metamateri...

Journal: :Optics express 2009
Kamil Boratay Alici Filiberto Bilotti Lucio Vegni Ekmel Ozbay

In the present work, we studied particle candidates for metamaterial applications, especially in terms of their electrical size and resonance strength. The analyzed particles can be easily produced via planar fabrication techniques. The electrical size of multi-split ring resonators, spiral resonators, and multi-spiral resonators are reported as a function of the particle side length and substr...

2012
Matthew Mancuso Julie M. Goddard David Erickson

Optically resonant devices are promising as label-free biomolecular sensors due to their ability to concentrate electromagnetic energy into small mode volumes and their capacity for multiplexed detection. A fundamental limitation of current optical biosensor technology is that the biomolecular interactions are limited to the surface of the resonant device, while the highest intensity of electro...

Journal: :Physical review letters 2010
Guillaume Boudarham Nils Feth Viktor Myroshnychenko Stefan Linden Javier García de Abajo Martin Wegener Mathieu Kociak

We report on spectral imaging within individual silver split-ring resonators (SRRs) operating in the near infrared-visible range. We classified the optical eigenmodes from the measurement of their energies and nanometer scale spatial distributions. They are plasmonic standing waves that show great similarities with that of nanoantennas. We, however, evidenced marked differences in the near-fiel...

2012
Radovan Bojanic Branka Jokanovic Vojislav Milosevic

In this paper we proposed anovel multiband delay line which consists of two types of split-ring resonators: the broadiside coupled and the single split-ring resonator. Proposeddelay line exhibits two left-handed bands that can be shifted by twisting the split rings for certain angle or by changing their lengths. This delay line is suitable for design of multiband frequency scanning antennas sin...

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