نتایج جستجو برای: multiple mode resonator

تعداد نتایج: 974586  

Journal: :Optics letters 1980
G Giuliani Y K Park R L Byer

We have invented a quasi-Gaussian profile-transmittance filter based on radially varying the phase retardation in a birefringent element. The radial birefringent element has been applied to resonator design and has demonstrated its usefulness in generating an improved resonator spatial-mode profile.

Journal: :Optics express 2007
Pablo Bianucci Chris R Fietz John W Robertson Gennady Shvets Chih-Kang Shih

We experimentally demonstrate controlled polarization-selective phenomena in a whispering gallery mode resonator. We observed efficient ( approximately 75%) polarization conversion of light in a silica microsphere coupled to a tapered optical fiber with proper optimization of the polarization of the propagating light. A simple model treating the microsphere as a ring resonator provides a good f...

Journal: :Optics express 2011
Jesse Lu Stephen Boyd Jelena Vučković

The inverse design of a three-dimensional nanophotonic resonator is presented. The design methodology is computationally fast (10 minutes on a standard desktop workstation) and utilizes a 2.5-dimensional approximation of the full three-dimensional structure. As an example, we employ the proposed method to design a resonator which exhibits a mode volume of 0.32(λ/n)3 and a quality factor of 7063.

2001
Seoijin Park Seong-Soo Kim Liwei Wang

We have demonstrated semiconductor lasers with microring resonators as frequency-selective elements. We show that the small resonator inside the laser makes single frequency-mode operation possible with reasonably good side-mode rejection.

2013
Santhosh Doreswamy Vishwakarma Rudra Pratap Ashok Kumar Pandey Jeevak M. Parpia Darren Robert Southworth Robert Anthony Barton Harold G. Craighead

A semi-analytical study of the acoustic radiation losses associated with various transverse vibration modes of a micromechanical (MEMS) annular resonator is presented. The quality factor, Q, of such resonators is of interest in many applications and depends on structural geometry, fluid-structure interaction, and the device encapsulation. Resonators with at least one surface exposed to air can ...

2017
Jamal Nasir Mohd Haizal Jamaluddin Aftab Ahmad Khan Muhammad Ramlee Kamarudin Chee Yen Leow Owais Bajpai

An L-shaped dual-band multiple-input multiple-output (MIMO) rectangular dielectric resonator antenna (RDRA) for long term evolution (LTE) applications is proposed. The presented antenna can transmit and receive information independently using fundamental TE111 and higher order TE121 modes of the DRA. TE111 degenerate mode covers LTE band 2 (1.85-1.99 GHz), 3 (1.71-1.88 GHz), and 9 (1.7499-1.784...

2000
B. Borovsky B. L. Mason J. Krim

We report highly accurate measurements of the vibrational amplitude of a transverse shear mode quartz resonator, obtained by directly imaging the surface oscillatory motion with a scanning tunneling microscope. Amplitude measurements, performed over a range of resonator drive levels and quality factors, agree with theoretical predictions to within a factor of two. © 2000 American Institute of P...

2010
Ali Haddadpour Yasha Yi

We have numerically investigated the unique effects of metallic nanoparticle on the ring resonator, especially multiple Au nanoparticles on the micro ring resonator with the 4-port configuration on chip. For the Au nanoparticle, because it has smaller real refractive index than air and large absorption refractive index, we found that there is a blue shift for the ring resonance wavelength, inst...

2013
J. Antonio Marcotegui Jesús Miguel Illescas Aritz Estevez Francisco Falcone

A new class of broadband microstrip filters for Ultra Wide Band (UWB) applications is proposed. In the design, different stages of parallel-coupled microstrip line and other stages with a Modified Complementary Split Ring Resonator (MCSRR)-a concept proposed here for the first time-are adjusted to obtain the desired response with broadband, sharp rejection, low insertion loss, and low return lo...

Journal: :IEEE Open Journal of Antennas and Propagation 2023

This paper introduces novel dual-polarized/duplex filtering antennas with a feeding network. The network consists of an all-resonator structure, which shares common dualmode resonator. structure facilitates the isolation two well-isolated channels through exploitation even and odd modes dual-mode By applying balanced excitation to mode unbalanced mode, can be separated, creating hybrid-like str...

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