Transmission coefficients, relative modal powers and radiated field patterns in overmoded coaxial waveguides

2006 ◽  
Vol 153 (6) ◽  
pp. 222 ◽  
Author(s):  
J.G. Davis ◽  
A.A.P. Gibson
Keyword(s):  
Transmission Coefficients ◽  
Field Patterns ◽  
Coaxial Waveguides

FORMATION OF EXTENDED FIELD PATTERNS IN OPEN RESONATORS WITH TRAPEZOIDAL MIRRORS

2011 ◽  
Vol 70 (13) ◽  
pp. 1121-1131
Author(s):  
V. S. Miroshnichenko ◽  
V. G. Dudka ◽  
D. V. Yudintsev
Keyword(s):  
Field Patterns ◽  
Extended Field ◽  
Open Resonators

Nonradiative subdiffraction near-field patterns using metagratings

2021 ◽  
Vol 118 (13) ◽  
pp. 131105
Author(s):  
Oshri Rabinovich ◽  
Ariel Epstein
Keyword(s):  
Near Field ◽  
Field Patterns

Light coupling structures and switches for plasmonic coaxial waveguides

2021 ◽  
Vol 129 (19) ◽  
pp. 193103
Author(s):  
Amirreza Mahigir ◽  
Georgios Veronis
Keyword(s):  
Light Coupling ◽  
Coaxial Waveguides

Crystal truncation rod X-ray scattering: exact dynamical calculation

2008 ◽  
Vol 41 (1) ◽  
pp. 18-26 ◽  
Author(s):  
Václav Holý ◽  
Paul F. Fewster
Keyword(s):  
Reciprocal Lattice ◽  
Dynamical Theory ◽  
Lattice Points ◽  
Space Distribution ◽  
Matrix Formalism ◽  
X Ray ◽  
Transmission Coefficients ◽  
X Ray Scattering ◽  
Crystal Truncation Rod ◽  
Scattering Geometry

A new method is presented for a calculation of the reciprocal-space distribution of X-ray diffracted intensity along a crystal truncation rod. In contrast to usual kinematical or dynamical approaches, the method is correct both in the reciprocal-lattice points and between them. In the method, the crystal is divided into a sequence of very thin slabs parallel to the surface; in contrast to the well known Darwin dynamical theory, the electron density in the slabs is constant along the surface normal. The diffracted intensity is calculated by a matrix formalism based on the Fresnel reflection and transmission coefficients. The method is applicable for any polarization of the primary beam and also in a non-coplanar scattering geometry.

scholarly journals Broadband Sharp 90-degree Bends and T-Splitters in Plasmonic Coaxial Waveguides

Nano Letters ◽  
2013 ◽  
Vol 13 (10) ◽  
pp. 4753-4758 ◽  
Author(s):  
Wonseok Shin ◽  
Wenshan Cai ◽  
Peter B. Catrysse ◽  
Georgios Veronis ◽  
Mark L. Brongersma ◽  
...  
Keyword(s):  
Coaxial Waveguides

scholarly journals Axial localization and tracking of self-interference nanoparticles by lateral point spread functions

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yongtao Liu ◽  
Zhiguang Zhou ◽  
Fan Wang ◽  
Günter Kewes ◽  
Shihui Wen ◽  
...  
Keyword(s):  
Mirror Image ◽  
Excitation Wavelength ◽  
Far Field ◽  
Point Spread Functions ◽  
Microscopy Imaging ◽  
Localization Accuracy ◽  
Field Patterns ◽  
Atomic Force ◽  
Point Spread ◽  
Sensing Technology

AbstractSub-diffraction limited localization of fluorescent emitters is a key goal of microscopy imaging. Here, we report that single upconversion nanoparticles, containing multiple emission centres with random orientations, can generate a series of unique, bright and position-sensitive patterns in the spatial domain when placed on top of a mirror. Supported by our numerical simulation, we attribute this effect to the sum of each single emitter’s interference with its own mirror image. As a result, this configuration generates a series of sophisticated far-field point spread functions (PSFs), e.g. in Gaussian, doughnut and archery target shapes, strongly dependent on the phase difference between the emitter and its image. In this way, the axial locations of nanoparticles are transferred into far-field patterns. We demonstrate a real-time distance sensing technology with a localization accuracy of 2.8 nm, according to the atomic force microscope (AFM) characterization values, smaller than 1/350 of the excitation wavelength.

Sign in / Sign up

Export Citation Format

Share Document