نتایج جستجو برای: modes of transmission

تعداد نتایج: 21188837  

2014
Yangyang Fu Yadong Xu Huanyang Chen

Zero-index-metamaterials (ZIM) have drawn much attention due to their intriguing properties and novel applications. Particularly, in a parallel plated ZIM waveguide system with defects, total reflection or transmission of wave can be achieved by adjusting the properties of defects. This effect has been explored extensively in different types of ZIM (e.g., epsilon-near-zero metamaterials, matche...

Journal: :Optics express 2015
Sun Hyok Chang Hwan Seok Chung Roland Ryf Nicolas K Fontaine Changyo Han Kyung Jun Park Kwangjoon Kim Jyung Chan Lee Jong Hyun Lee Byoung Yoon Kim Young Kie Kim

We propose all-fiber mode multiplexer composed of two consecutive LP₁₁ mode selective couplers that allows for the multiplexing of LP₀₁ mode and two-fold degenerate LP₁₁ modes. We demonstrate WDM transmission of 32 wavelength channels with 100 GHz spacing, each carrying 3 modes of 120 Gb/s polarization division multiplexed quadrature phase shifted keying (PDM-QPSK) signal, over 560 km of few-mo...

Journal: :اقتصاد و توسعه کشاورزی 0
محمود دانشور کاخکی رضا حیدری کمال آبادی

abstract this study is an attempt to investigate the influence of targeting subsidies on price transmission pattern in iran's egg market. the targeting subsidies plan was imposed by 20 december 2010. using of daily price time series data, the study was conducted during december 2009 to october 2011. using ecm model, price transmission models were estimated for the two periods (e.g. before and a...

2014
DHANYA JOB VARGHESE PAUL

Nowadays, Data transmission is becoming very important among humans. So there are many modes of data transmission introduced. Some of the modes of data transmission are through copper wires, wireless channels, computer buses, etc. Though there are certain modes of transmission, secured data transmission is an important thing what everyone needs, because everyone wants their data to transmit sec...

2009
Kate G Snedeker Darren J Shaw Mary E Locking Robin J Prescott

BACKGROUND Within outbreaks of Escherichia coli O157 (E. coli O157), at least 10-15% of cases are thought to have been acquired by secondary transmission. However, there has been little systematic quantification or characterisation of secondary outbreak cases worldwide. The aim of this study was to characterise secondary outbreak cases, estimate the overall proportion of outbreak cases that wer...

Journal: :Optics express 2014
Sun Hyok Chang Hwan Seok Chung Nicolas K Fontaine Roland Ryf Kyung Jun Park Kwangjoon Kim Jyung Chan Lee Jong Hyun Lee Byoung Yoon Kim Young Kie Kim

Mode division multiplexed optical transmission enabled by all-fiber mode multiplexer is investigated. The proposed all-fiber mode multiplexer is composed of consecutive mode selective couplers. It multiplexes or demultiplexes LP01, LP11, LP21, and LP02 modes simultaneously. We demonstrate successful transmission of three spatial modes with 120 Gb/s PDM-QPSK signals over 15 km of four mode fiber...

Journal: :Optics letters 2008
D Stolwijk E F C Driessen M A Verschuuren G W 't Hooft M P van Exter M J A de Dood

We compare the angle-dependent transmission spectra of a metal hole array with dielectric pillars in each hole with that of a conventional metal hole array. The pillars enhance the optical transmission as well as the interaction between surface plasmon modes. This results in an observed splitting Delta omega/omega as large as 6%, at normal incidence, for the modes on the pillar side of the array.

2016
Li Ding Jin Qin Songpo Guo Tao Liu Edward Kinzel Liang Wang

Nanoscale bowtie aperture antennas can be used to focus light well below the diffraction limit with extremely high transmission efficiencies. This paper studies the spectral dependence of the transmission through nanoscale bowtie apertures defined in a silver film. A realistic bowtie aperture is numerically modeled using the Finite Difference Time Domain (FDTD) method. Results show that the tra...

Journal: :Physical review letters 2013
Hyeonseung Yu Timothy R Hillman Wonshik Choi Ji Oon Lee Michael S Feld Ramachandra R Dasari YongKeun Park

We report a measurement of the large optical transmission matrix (TM) of a complex turbid medium. The TM is acquired using polarization-sensitive, full-field interferometric microscopy equipped with a rotating galvanometer mirror. It is represented with respect to input and output bases of optical modes, which correspond to plane wave components of the respective illumination and transmitted wa...

2017
Simon Lu Alan J. H. McGaughey

The lattice-based scattering boundary method is applied to compute the phonon mode-resolved transmission coefficients and thermal conductances of in-plane heterostructures built from graphene and hexagonal boron nitride (hBN). The thermal conductance of all structures is dominated by acoustic phonon modes near the Brillouin zone center that have high group velocity, population, and transmission...

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