Results 21 to 30 of about 2,682,308 (349)

Wave optics in spacetimes with compact gravitating object [PDF]

open access: yesPhysical Review D, 2019
We investigate the wave optics in spherically symmetric spacetimes: Schwarzschild black hole, spherical star with a perfect absorbing surface, and massless/massive Ellis wormholes.
Y. Nambu, Sousuke Noda, Yuichiro Sakai
semanticscholar   +1 more source

Optical rogue waves

open access: yesNature, 2007
Recent observations show that the probability of encountering an extremely large rogue wave in the open ocean is much larger than expected from ordinary wave-amplitude statistics. Although considerable effort has been directed towards understanding the physics behind these mysterious and potentially destructive events, the complete picture remains ...
Solli, D R   +3 more
openaire   +4 more sources

Lidar Estimates of the Anisotropy of Wind Turbulence in a Stable Atmospheric Boundary Layer

open access: yesRemote Sensing, 2019
In this paper, a method is proposed to estimate wind turbulence parameters using measurements recorded by a conically scanning coherent Doppler lidar with two different elevation angles.
Viktor A. Banakh, Igor N. Smalikho
doaj   +1 more source

Optical Dark Rogue Wave

open access: yesScientific Reports, 2016
AbstractPhotonics enables to develop simple lab experiments that mimic water rogue wave generation phenomena, as well as relativistic gravitational effects such as event horizons, gravitational lensing and Hawking radiation. The basis for analog gravity experiments is light propagation through an effective moving medium obtained via the nonlinear ...
Frisquet, Benoit   +6 more
openaire   +7 more sources

Wave-optics investigation of turbulence thermal blooming interaction: II. Using time-dependent simulations

open access: yes, 2020
. Part II of this two-part paper uses wave-optics simulations to look at the Monte Carlo averages associated with turbulence and time-dependent thermal blooming (TDTB). The goal is to investigate turbulence thermal blooming interaction (TTBI).
M. Spencer
semanticscholar   +1 more source

Transformation of spectra of refraction index fluctuations in axisymmetric supersonic jet with the increase in the distance from the nozzle

open access: yesMATEC Web of Conferences, 2017
In this paper the results of reconstruction of the radial dependence of refraction index fluctuations spectra in axisymmetric supersonic jet from laser transillumination data are presented.
Marakasov Dmitrii   +3 more
doaj   +1 more source

Development and validation of the Conceptual Survey on Wave Optics

open access: yesPhysical Review Physics Education Research, 2022
A new diagnostic instrument, the Conceptual Survey on Wave Optics (CSWO), was developed and validated on 224 high school students (aged 18–19 years) in Croatia.
Karolina Matejak Cvenic   +5 more
doaj   +1 more source

Wave-optics investigation of turbulence thermal blooming interaction: I. Using steady-state simulations

open access: yes, 2020
. Part I of this two-part paper uses wave-optics simulations to look at the Monte Carlo averages associated with turbulence and steady-state thermal blooming (SSTB). The goal is to investigate turbulence thermal blooming interaction (TTBI).
M. Spencer
semanticscholar   +1 more source

Theory of localization-hindered thermalization in nonlinear multimode photonics

open access: yesCommunications Physics, 2023
Our society’s appetite for ultra-high bandwidth communication networks and high-power optical sources, together with recent breakthroughs in mode multiplexing/demultiplexing schemes, forced the photonics community to reconsider the deployment of ...
Alba Y. Ramos   +4 more
doaj   +1 more source

Null Wave Front and Ryu–Takayanagi Surface

open access: yesEntropy, 2020
The Ryu–Takayanagi formula provides the entanglement entropy of quantum field theory as an area of the minimal surface (Ryu–Takayanagi surface) in a corresponding gravity theory.
Jun Tsujimura, Yasusada Nambu
doaj   +1 more source

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