Results 11 to 20 of about 10,858,201 (300)

A New Method for Selecting the Phase and Group Velocity Dispersion Curves of Rayleigh and Love Surface Waves: Real Data Case of Central Anatolia, Turkey (Türkiye)

open access: yesIndonesian Journal of Earth Sciences, 2023
We propose a new method to select the dispersion curve of Rayleigh and Love surface waves obtained from local and regional earthquakes. This method is efficient for the crustal tomography studies and the Central Anatolia is chosen to test it. The single-
Özcan Çakir, Yusuf Arif Kutlu
doaj   +1 more source

Alfvén waves: To the 80th anniversary of discovery

open access: yesSolar-Terrestrial Physics, 2022
The article is dedicated to the anniversary of the discovery of Alfvén waves. The concept of Alfvén waves has played an outstanding role in the formation and development of cosmic electrodynamics.
Guglielmi A. V.   +2 more
doaj   +1 more source

Dispersion engineering of W2 steeple-house-defect waveguide photonic crystal

open access: yesResults in Physics, 2020
An epitome for dispersion and buffering in a photonic crystal was set forth. Slots in the form of a line of contacted steeple-houses are implanted in a two-line photonic crystal waveguide (2LPCW) to form an irregular slot of steeple-house defect PCW ...
Sayed Elshahat   +4 more
doaj   +1 more source

57-fs, Er-doped all-fiber all-polarization-maintaining amplifier based on a hybrid DCF/FBG scheme for dispersion compensation

open access: yesResults in Optics, 2023
In this paper we experimentally demonstrate a femtosecond all-polarization- maintaining laser amplifier in an all-fiber scheme, which consists of a mode-locked oscillator and a two-stage amplifier.
Kuo Meng   +3 more
doaj   +1 more source

Comments about dispersion of light waves

open access: yesJournal of the European Optical Society-Rapid Publications, 2022
Dispersion of light waves is well known, but the subject deserves some comments. Certain classical equations do not fully respect causality; as an example, group velocity vg is usually given as the first derivative of the angular frequency ω with respect
Lefèvre Hervé C.
doaj   +1 more source

Dispersion Engineering of Waveguide Microresonators by the Design of Atomic Layer Deposition

open access: yesPhotonics, 2023
In this work, we demonstrate dispersion engineering of silicon nitride waveguide resonators with atomic layer deposition (ALD). We conducted theoretical and experimental analyses on the waveguide dispersion with air cladding, hafnium oxide (HfO2 ...
Pei-Hsun Wang, Nien-Lin Hou, Kung-Lin Ho
doaj   +1 more source

Dispersion Engineering of Silicon Nitride Microresonators via Reconstructable SU-8 Polymer Cladding

open access: yesMicromachines, 2022
In this work, we propose a novel way to flexibly engineer the waveguide dispersion by patterning the cladding of waveguide microresonators. Experimentally, we demonstrate silicon nitride waveguides with air-, oxide-, and SU-8 polymer-cladding layers and ...
Shang-Pu Wang   +3 more
doaj   +1 more source

Group velocity dispersion data used in the ambient noise tomography in Pearl River Delta, South China

open access: yes, 2021
Group velocity dispersion data used in the ambient noise tomography in Pearl River Delta, South ...
Lü Zuoyong
core   +1 more source

Dispersion of nonlinear group velocity determines shortest envelope solitons [PDF]

open access: yes, 2011
We demonstrate that a generalized nonlinear Schrödinger equation (NSE), that includes dispersion of the intensity-dependent group velocity, allows for exact solitary solutions.
Bandelow, Uwe   +6 more
core   +1 more source

Flatband Slow Wave in Novel Air-Hole-Array Strip Waveguides

open access: yesIEEE Photonics Journal, 2009
We design two novel air-hole-array strip waveguides: one with elliptic air holes and the other with sandglass-shaped ones. Simulation results prove that flatband modes with low group velocity and low dispersion can be obtained.
Lei Dai, Fanghua Wang, Chun Jiang
doaj   +1 more source

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