Results 41 to 50 of about 72,240 (296)
Leaky mode integrated optical fibre refractometer [PDF]
Optics Express, 2018 A route to monitor external refractive indices greater than the core index of the waveguide is presented. Initial application utilizes an integrated optical fibre (IOF) platform due to its potential for use in harsh environment sensing. IOF is fabricated using a bespoke flame hydrolysis deposition process to fuse an optical fibre to a planar substrate ...
Alan C. Gray +6 more
openaire +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
Leaky Modes on a Grounded Wire-Medium Slab [PDF]
2007 IEEE/MTT-S International Microwave Symposium, 2007 Leaky modes supported by a grounded wire-medium slab are studied here in detail for the first time. Such leaky modes are responsible for highly-directive radiation when the structure is excited by a dipole source. The analysis is carried out by means of a rigorous full-wave numerical approach based on the method-of-moments and also by using an ...
BURGHIGNOLI, Paolo +4 more
openaire +5 more sources
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
Leaky modes in multilayer uniaxial optical waveguides [PDF]
Applied Optics, 1990 The propagation characteristics of the leaky modes in planar anisotropic waveguides with a multilayer structure have been investigated by means of a compact rigorous formalism. The leakage losses and leaky transition angle have been studied for the fundamental and first hybrid modes.
Torner Sabata, Lluís +2 more
openaire +5 more sources
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
FEBS Letters, EarlyView.This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva +5 more
wiley +1 more source
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
FEBS Letters, EarlyView.In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai +9 more
wiley +1 more source
IEEE Photonics Journal, 2020 Resonant excitation analysis on asymmetrical lateral leakage of light in the finite zero-contrast grating (ZCG) mirror is demonstrated, and the size effect of the excited source is investigated.
Tian Sang +5 more
doaj +1 more source