Guiding light by and beyond the total internal reflection mechanism [PDF]
, 2005 This thesis reports a series of techniques the author has developed to model various waveguiding structures, including the conventional planar and channel waveguides working by, and the advanced structures working beyond the TIR mechanism.
Uranus, Henri Putra
core +6 more sources
Higher-Order Leaky-Mode Bessel-Beam Launcher [PDF]
IEEE Transactions on Antennas and Propagation, 2016 We present a Bessel-beam launcher based on a leaky radial waveguide consisting of a capacitive sheet over a ground plane that supports higher-order leaky modes. A propagating Bessel beam is generated above the radiating waveguide. The Bessel beam is transverse-magnetic (TM) polarized with a vertical component of electric field that is a zeroth-order ...
FUSCALDO, WALTER +5 more
openaire +2 more sources
Fast magnetoacoustic waves in curved coronal loops. I, Trapped and leaky modes [PDF]
, 2006 A study of vertically polarised fast magnetoacoustic waves in a curved coronal loop is presented. The loop is modeled as a semi-circular magnetic slab in the zero plasma-β limit. The governing equations for linear waves are derived. We show that the wave
Andries +27 more
core +2 more sources
Enhanced nonlinear frequency conversion and Purcell enhancement at exceptional points
, 2017 We derive analytical formulas quantifying radiative emission from subwavelength emitters embedded in triply resonant nonlinear $\chi^{(2)}$ cavities supporting exceptional points (EP) made of dark and leaky modes.
Jin, Weiliang +3 more
core +1 more source
Angular control of anisotropy-induced bound states in the continuum [PDF]
, 2019 Radiation of leaky modes existing in anisotropic waveguides can be cancelled by destructive interference at special propagation directions relative to the optical axis orientation, resulting in fully bound states surrounded by radiative modes.
Artigas García, David +4 more
core +3 more sources
Influence of Subwavelength Grating Asymmetry on Long-Wavelength Infrared Transmittance Filters
IEEE Photonics Journal, 2018 Subwavelength dielectric gratings provide a means of narrowband spectral filtering by coupling to quasi-guided leaky modes, providing a high reflectivity background and narrowband transmittance via Fano resonance behavior.
Michael Barrow +2 more
doaj +1 more source
Metalens and microtaper spectrometers on a fingertip
Light: Science & Applications, 2023 A multi-foci metalens and a leaky-mode microtaper provide innovative platforms to achieve high-resolution, wideband light spectra in millimeter-sized devices, thereby paving new ways for the commercialization of on-fingertip spectrometers.
Peixia Zheng, Xuan Zhang, Hong-Chao Liu
doaj +1 more source
Experimental and theoretical confirmation of Bloch-mode light propagation in planar photonic crystal waveguides [PDF]
, 2002 The dispersion diagram of the leaky modes in the planar photonic crystal waveguide is experimentally obtained for the wavelengths from 1440 to 1590 nm. A small stop band, around wavelength 1500 nm, is detected.
Allan, Douglas C. +6 more
core +1 more source
Nonradiating Photonics with Resonant Dielectric Nanostructures [PDF]
, 2019 Nonradiating sources of energy have traditionally been studied in quantum mechanics and astrophysics, while receiving a very little attention in the photonics community.
Bogdanov, Andrey +4 more
core +2 more sources
Dynamics of the excitations of a quantum dot in a microcavity [PDF]
, 2003 We study the dynamics of a quantum dot embedded in a three-dimensional microcavity in the strong coupling regime in which the quantum dot exciton has an energy close to the frequency of a confined cavity mode.
C. Cohen-Tannoudji +8 more
core +1 more source