Results 21 to 30 of about 10,858,201 (300)
Meikuang Anquan, 2020 Dispersion curves of Rayleigh channel waves may have “cross” between the fundamental and first higher order modes either in the phase velocities or in group velocities in the low frequency band.
HE Daxi, ZHU Peimin, SHEN Suishui, CAI Wei, WANG Wengang
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Modulational instability of discrete solitons in coupled waveguides with group velocity dispersion [PDF]
, 2006 We study temporal modulational instability of spatial discrete solitons in waveguide arrays with group velocity dispersion (GVD). For normal GVD we report existence of the strong 'neck'-type instability specific for the discrete solitons.
Vladimirov, Andrei G. +4 more
core +1 more source
Period-Timing Bifurcations in a Dispersion-Managed Fiber Laser With Zero Group Velocity Dispersion
IEEE Photonics Journal, 2016 We report on the numerical results of period timing bifurcations in a dispersion-managed (DM) fiber laser with zero group velocity dispersion (GVD).The fiber laser is passively mode-locked by using the nonlinear polarization rotation technique.
Qian Zhang +3 more
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High coupling efficiency to a low dispersion slow light-supporting photonic crystal waveguide [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 In this paper, we design a waveguide on photonic crystal slab for propagation of low-dispersion slow light. By shifting the air holes adjacent to the waveguide, we obtain a photonic crystal waveguide with a group index of 25 in 25 nm bandwidth which ...
Moghaddam M. Khatibi +2 more
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Group velocity dispersion curves estimation based on joint processing of sound pressure and vertical particle velocity [PDF]
JASA Express LettersIt is difficult to separate and estimate the intersected group velocity dispersion curves for different normal modes when the frequency is lower than the cutoff frequency of water column.
Guangxue Zheng +3 more
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New Journal of Physics, 2022 The group velocity of an optical beam in free space is usually considered to be equal to the speed of light in vacuum. However, it has been recently realized that, by structuring the beam’s angular and temporal spectra, one can achieve well pronounced ...
P Hildén +3 more
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Alumina coating for dispersion management in ultra-high Q microresonators
APL Photonics, 2020 Silica optical microspheres often exhibit ultra-high quality factors, yet their group velocity dispersion, which is crucial for nonlinear optics applications, can only be coarsely tuned.
Marvyn Inga +7 more
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Measuring the group velocity dispersion of higher order modes in hollow core photonic bandgap fibre [PDF]
, 2015 We present for the first time the group velocity dispersion of multiple distinguishable modes propagating in 3, 7 and 19 cell hollow core photonic bandgap fibres.
Petrovich, M.N. +6 more
core +2 more sources
Which group velocity in a dispersive medium ? [PDF]
The European Physical Journal Plus, 2011 To be submitted on ...
El Gawary O +2 more
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Radial Velocity Dispersions of Star Groups in M67
Open Astronomy, 2016 AbstractHigh-precision measurements of radial velocities of the M67 cluster members are used to calculate the radial-velocity dispersions in the stellar groups found earlier in the cluster’s corona. The previously detected feature in one of the groups (Group 60) consisting of stars with almost identical space velocities was confirmed.
Vereshchagin S. V., Chupina N. V.
openaire +3 more sources