Results 41 to 50 of about 41,968 (295)
Nanophotonics, 2019 Optical losses of a host material together with the total internal reflection phenomenon can significantly reduce photoluminescence external quantum efficiency of embedded light-emitters. This is not only the case for light-emitting color centers in thin
Fait Jan +7 more
doaj +1 more source
Leaky interface phonons in AlGaAs/GaAs structures
, 2000 A dispersion equation for the interface waves has been derived for the interface of two cubic crystals in the plane perpendicular to [001]. A reasonable hypothesis has been made about the total number of the acoustic modes.
Efros, A. L., Ponomarev, I. V.
core +1 more source
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
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
Focusing Light with Curved Guided-Mode Resonance Reflectors
Micromachines, 2011 Employing numerical simulations, we investigate the possibility of using curved guided-mode resonance (GMR) elements to focus light in reflection. We treat GMR reflectors with a parabolic shape and show that they are capable of focusing light effectively
Robert Magnusson +2 more
doaj +1 more source
Resonant absorption in semiconductor nanowires and nanowire arrays: Relating leaky waveguide modes to Bloch photonic crystal modes [PDF]
, 2014 We present a unified framework for resonant absorption in periodic arrays of high index semiconductor nanowires that combines a leaky waveguide theory perspective and that of photonic crystals supporting Bloch modes, as array density transitions from ...
Atwater, Harry A. +2 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
Observation of directional leaky polaritons at anisotropic crystal interfaces
Nature Communications, 2023 Extreme anisotropy in some polaritonic materials enables light propagation with a hyperbolic dispersion, leading to enhanced light-matter interactions and directional transport.
Xiang Ni +9 more
doaj +1 more source
Exciton-polariton emission from organic semiconductor optical waveguides
, 2011 We photo-excite slab polymer waveguides doped with J-aggregating dye molecules and measure the leaky emission from strongly coupled waveguide exciton polariton modes at room temperature.
B. E. A. Saleh +2 more
core +1 more source
Band dynamics of leaky-mode photonic lattices
Optics Express, 2019 External waves incident on a periodic metamaterial lattice couple to it at frequencies corresponding to the leaky, or second, stop band. The resulting leaky-mode or guided-mode resonance effects are useful in device design and spectral manipulation. Indeed, some of the most important properties of metamaterials are associated with the leaky stopband ...
Sun-Goo, Lee, Robert, Magnusson
openaire +2 more sources