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Phase fluctuations in vortex beams

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1 Published in 2020 at "Optics Communications"

DOI: 10.1016/j.optcom.2020.126189

Abstract: Abstract Phase fluctuations of vortex beams are examined using the random phase screen setup. By taking Gaussian, Bessel Gaussian and Laguerre Gaussian vortex beams, with the main focus being on Gaussian vortex beam, we investigate… read more here.

Keywords: phase fluctuations; phase; beams phase; vortex beams ... See more keywords

Destruction of superconductivity through phase fluctuations in ultrathin a -MoGe films

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1 Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.102.060501

Abstract: Superconductivity occurs in metals when attractive interactions between electrons promote the formation of Cooper pairs which get locked in a phase-coherent state, leading to superfluid behavior. In situations where the phase stiffness falls below the… read more here.

Keywords: superconductivity; phase fluctuations; moge films; destruction superconductivity ... See more keywords

Fluctuations and persistence in quantum diffusion on regular lattices.

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0 Published in 2024 at "Physical review. E"

DOI: 10.1103/physreve.111.024126

Abstract: We investigate quantum persistence by analyzing amplitude and phase fluctuations of the wave function governed by the time-dependent free-particle Schrödinger equation. The quantum system is initialized with local random uncorrelated Gaussian amplitude and phase fluctuations.… read more here.

Keywords: phase fluctuations; amplitude phase; persistence; quantum diffusion ... See more keywords

Analysis of a heterodyne detection system affected by irradiance and phase fluctuations in slant atmospheric turbulence.

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0 Published in 2018 at "Applied optics"

DOI: 10.1364/ao.57.009596

Abstract: A mathematical model considering the effects of amplitude and phase random fluctuations on the signal-to-noise ratio (SNR) of heterodyne detection was established, and the effects of irradiance and phase fluctuations on the performance of heterodyne… read more here.

Keywords: phase fluctuations; heterodyne detection; irradiance phase;

Generation of random numbers by measuring phase fluctuations from a laser diode with a silicon-on-insulator chip.

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0 Published in 2018 at "Optics express"

DOI: 10.1364/oe.26.019730

Abstract: Random numbers are a fundamental resource in science and technology. Among the different approaches to generating them, random numbers created by exploiting the laws of quantum mechanics have proven to be reliable and can be… read more here.

Keywords: random numbers; insulator chip; phase fluctuations; silicon insulator ... See more keywords