Special Issue "Symmetric/Asymmetric Study in Optics: Topics, Advances and Applications"

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".

Deadline for manuscript submissions: 30 November 2023 | Viewed by 337

Special Issue Editors

School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
Interests: optics
School of Optoelectronic Engineering, Guangdong Polytechnic Normal University, Guangzhou, China
Interests: laser; coherence; optics and lasers

Special Issue Information

Dear Colleagues,

The symmetry of beams’ propagation is a fascinating research topic that is accompanied by exciting new developments in laser beam machining, quantum optics, microscopy, quantum informatics, and optical communication. The symmetry of symmetric beam propagation includes several beam properties due to optical diffraction and can be applied in optical imaging and optical measurement. Optical diffraction, optical imaging, and optical measurement are central topics in many modern and scientific fields, which are closely related and have a wide range of applications, such as microscope, telescope, sensor, military, biological sciences, etc. Optical diffraction is a basic spatial coherence phenomenon that allows us to determine how rapidly a coherent beam spreads with distance, how fast a pulse spreads in time, and how sharply the beam can be focused, all critical in military systems. Usually, Fourier analysis and synthesis techniques are a unifying theme through this subject. Optical imaging uses light and special properties of photons to obtain detailed images of organs, tissues, cells, and even molecules. The techniques offer minimally or non-invasive methods for looking inside the body. Optical measurement is a measurement technique that relies on the use of optical sensors to collect measurements. Generally, optical imaging acts as the basis of optical measurement. There have been many significant achievements in the field of optical imaging without lenses, but many challenges also remain, associated with wide-field on-chip microscopy, and optical measurement involves a rigorous and quantitative consideration of optical imaging results.

Prof. Dr. Dongmei Deng
Dr. Xi Peng
Guest Editors

Manuscript Submission Information

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  • autofocusing symmetric beams
  • self-accelerating symmetric beams
  • symmetric vortex beams arrays
  • atmospheric and oceanic propagation
  • symmetric plasmas
  • symmetric electron beams
  • propagation
  • imaging

Published Papers (1 paper)

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Oblique Arbitrary Amplitude Dust Ion Acoustic Solitary Waves in Anisotropic Non-Maxwellian Plasmas with Kappa-Distributed Electrons
Symmetry 2023, 15(10), 1843; https://doi.org/10.3390/sym15101843 - 29 Sep 2023
Viewed by 131
In this paper, we investigate the behavior of dust ion acoustic solitary waves (DIASWs) with arbitrary amplitudes in a magnetized anisotropic dusty plasma that includes inertial hot ion fluid, electrons following a Kappa distribution, and negatively charged dust particles in the background. An [...] Read more.
In this paper, we investigate the behavior of dust ion acoustic solitary waves (DIASWs) with arbitrary amplitudes in a magnetized anisotropic dusty plasma that includes inertial hot ion fluid, electrons following a Kappa distribution, and negatively charged dust particles in the background. An ambient magnetic field aligns with the x-direction, while the wave propagation occurs obliquely to the ambient magnetic field. In the linear regime, two distinct modes, namely fast and slow modes, are observed. We employ the Sagdeev pseudo-potential method to analyze the fundamental properties of arbitrary amplitude DIASWs. Additionally, we examine how various physical parameters influence the existence and characteristics of symmetric planar dust ion acoustic solitary structures (DIASs). The characteristics of the solitary structures are greatly influenced by the dust concentration, the electrons superthermality (spectral) index, the obliquity parameter, the magnetic field, the parallel ion pressure and the perpendicular ion pressure. The results show that the amplitude and width of both compressive and rarefactive DIASWs are sensitive to the degree of electron superthermality and dust concentration. Additionally, it is shown that the propagation features of DIASWs are highly affected by the parallel component of ion pressure as compared to perpendicular component of ion pressure. Full article
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