Results 41 to 50 of about 71,451 (265)

The impact of hBN layers on guided exciton–polariton modes in WS2 multilayers

open access: yesNanophotonics
Guided exciton–polariton modes naturally exist in bare transition metal dichalcogenide (TMDC) layers due to self-hybridization between excitons and photons.
Lee Ho Seung   +3 more
doaj   +1 more source

Axial stress monitoring strategy in arbitrary cross-section based on acoustoelastic guided waves using PZT sensors

open access: yesAIP Advances, 2019
Axial stress monitoring in arbitrary cross sections is a challenging task. Stringers are the main axial load carrying components of aircraft skin structures and have typical complex cross sections.
Yunlong Ma   +5 more
doaj   +1 more source

Lateral Modes in Quantum Cascade Lasers

open access: yesPhotonics, 2016
We will examine the waveguide mode losses in ridge-guided quantum cascade lasers. Our analysis illustrates how the low-loss mode for broad-ridge quantum cascade lasers (QCLs) can be a higher-order lateral waveguide mode that maximizes the feedback from ...
Gregory C. Dente, Michael Tilton
doaj   +1 more source

Modeling the Propagation of Ultrasonic Guided Waves in a Composite Plate by a Spectral Approximation Method

open access: yesEngineering Transactions, 2023
Graphite-epoxy composites have been able to meet the multiple requirements of the space industry. However, the radiation from the spatial environment and non-perfect adhesion between the fibers and the matrix can lead to the appearance of imperfections ...
Ismaine ZITOUNI   +2 more
doaj   +1 more source

Spatiotemporal coupled-mode theory of guided-mode resonant gratings

open access: yesOptics Express, 2015
In this paper, we develop spatiotemporal coupled-mode theory to describe optical properties of guided-mode resonant gratings. We derive partial differential equations that describe both spatial and temporal evolution of the field inside the grating. These equations describe the coupling of two counter-propagating grating modes, revealing the structure ...
Dmitry A, Bykov, Leonid L, Doskolovich
openaire   +2 more sources

Impact of Metastatic Patterns on Survival and Response to Therapy in Neuroblastoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background While the presence of metastases in neuroblastoma (NB) is a well‐established prognostic factor, the clinical significance of dissemination patterns and tumour burden and their impact on response and survival remains poorly understood.
Mariona Morell‐Daniel   +15 more
wiley   +1 more source

3-D near-field imaging of guided modes in nanophotonic waveguides

open access: yesNanophotonics, 2017
Highly evanescent waveguides with a subwavelength core thickness present a promising lab-on-chip solution for generating nanovolume trapping sites using overlapping evanescent fields.
Ziegler Jed I.   +6 more
doaj   +1 more source

Experimental Study of the Guided Wave Directivity Patterns of Thin Removable Magnetostrictive Patches

open access: yesSensors, 2020
The characteristics of removable magnetostrictive thin patches are investigated for the generation of guided waves in plates. The directivity patterns of SH, S0 and A0 modes have been measured in a thin metallic plate for different combinations of static
Akram Zitoun   +3 more
doaj   +1 more source

Selection of Higher Order Lamb Wave Mode for Assessment of Pipeline Corrosion

open access: yesMetals, 2022
Hidden corrosion defects can lead to dangerous accidents such as leakage of toxic materials causing extreme environmental and economic consequences. Ultrasonic guided waves showed good potential detecting distributed corrosion in pipeline networks at ...
Donatas Cirtautas   +4 more
doaj   +1 more source

Efficiency enhancement of OLED by extracting guided modes

open access: yes2017 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 2017
The effects of the structural parameters of the photonic crystal (PC) placed between glass and indium tin oxide (ITC) for an efficient organic light-emitting diode (OLED) design is studied. It is shown that the light extraction efficiency of OLEDs varies with the PC height and period.
Yilmaz, D.   +6 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy