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Photonics
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Phononic Crystals: Science and Applications
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Phononic Crystals: Science and Applications

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: closed (20 March 2023) | Viewed by 3878

Special Issue Editor

Dr. Ahmed Mehaney

E-Mail Website
Guest Editor
TH-PPM Group, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62521, Egypt
Interests: phononic crystals; photonic crystals; metamaterials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Phononic crystals are artificial structures arranged in one-, two- and three-dimensional lattices. These materials have the capability to control the motion of mechanical waves (phonons) ranging from infra sonic frequencies up to heat (giga hertz frequencies) energy. They are also characterized by a unique property called phononic band gaps; through them, all incident waves are effectively prohibited. There are several mathematical methods used in developing these materials, such as the transfer matrix method, plane wave expansion method, finite element method, and others. Therefore, the using of these materials in modern applications is increasing.

This Special Issue entitled as “Phononic Crystals” focuses on the dynamics of materials and structures, especially phononic crystals and locally resonant phononic metamaterials, at both the continuum and atomistic scales. These studies range from vibration isolation structures in lattice dynamics, sensors, and energy harvesting structures, as well as phoxonic crystals and metamaterials. The introduced works for this Special Issue must be concerned with physical phenomena governing these systems, relevant theoretical and computational treatments, and the analysis of the effects of dispersion, resonance, dissipation, and nonlinearity as well as experimental fabrication of these structures.

Dr. Ahmed Mehaney
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Photonics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • phononic crystals
  • acoustic metamaterials
  • acoustic biosensors
  • energy harvesting devices
  • filters
  • thermal energy management
  • phoxonic crystals

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Published Papers (2 papers)

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Research

16 pages, 3813 KiB  
Article
An Investigation of High-Performance Pressure Sensor Employing a Polymer-Defect-Based 1D Annular Photonic Crystal
by Ayman A. Ameen, Abinash Panda, Ahmed Mehaney, Abdulkarem H. M. Almawgani, Dipika D. Pradhan, Ghassan Ahmed Ali, Yahya Ali Abdelrahman Ali and Hussein A. Elsayed
Photonics 2023, 10(7), 731; https://doi.org/10.3390/photonics10070731 - 26 Jun 2023
Cited by 2 | Viewed by 1643
Abstract
This study aims to theoretically address the design and analysis of an efficient pressure sensor designed using a polymer-based defective 1D annular photonic crystal (APC). The 1D APC comprises an alternate arrangement of Si and SiO2 in a cylindrical fashion, incorporating a [...] Read more.
This study aims to theoretically address the design and analysis of an efficient pressure sensor designed using a polymer-based defective 1D annular photonic crystal (APC). The 1D APC comprises an alternate arrangement of Si and SiO2 in a cylindrical fashion, incorporating a central defect layer. The investigation of the reflectance characteristics of the proposed structure is conducted by separately considering the polystyrene (PS) and the polymethyl methacrylate (PMMA) polymer materials as the defect layer. The pressure-sensitive refractive index of the polymers and the constituent materials of the APC play a vital role in envisaging the pressure-sensing application. The cornerstone of this study is represented by the shift analysis regarding the wavelength of the defect mode inside the band gap using different applied pressures, employing the modified transfer matrix method (MTMM). Various geometrical parameters like the defect polymer layer’s thickness and the APC period were carefully optimized to achieve an improved sensing performance. The proposed design demonstrated a remarkable pressure sensitivity and FoM of 51.29 nm/GPa and 301.7 GPa−1, respectively, which is considerably high in the current research scenario. It is believed that the proposed structure can be an apt candidate for an innovative high-performance pressure sensor, and could play a key role in photonic integrated circuits. Full article
(This article belongs to the Special Issue Phononic Crystals: Science and Applications)
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15 pages, 5367 KiB  
Article
A New Lattice Boltzmann Scheme for Photonic Bandgap and Defect Mode Simulation in One-Dimensional Plasma Photonic Crystals
by Huifang Ma, Bin Wu, Liping Song, Hao Ren, Wanshun Jiang, Wenyue Guo and Mingming Tang
Photonics 2022, 9(7), 464; https://doi.org/10.3390/photonics9070464 - 1 Jul 2022
Viewed by 1775
Abstract
A novel lattice Boltzmann method (LBM) with a pseudo-equilibrium potential is proposed for electromagnetic wave propagation in one-dimensional (1D) plasma photonic crystals. The final form of the LBM incorporates the dispersive effect of plasma media with a pseudo-equilibrium potential in the equilibrium distribution [...] Read more.
A novel lattice Boltzmann method (LBM) with a pseudo-equilibrium potential is proposed for electromagnetic wave propagation in one-dimensional (1D) plasma photonic crystals. The final form of the LBM incorporates the dispersive effect of plasma media with a pseudo-equilibrium potential in the equilibrium distribution functions. The consistency between the proposed lattice Boltzmann scheme and Maxwell’s equations was rigorously proven based on the Chapman–Enskog expansion technique. Based on the proposed LBM scheme, we investigated the effects of the thickness and relative dielectric constant of a defect layer on the EM wave propagation and defect modes of 1D plasma photonic crystals. We have illustrated that several defect modes can be tuned to appear within the photonic bandgaps. Both the frequency and number of the defect modes could be tuned by changing the relative dielectric constant and thickness of the defect modes. These strategies would assist in the design of narrowband filters. Full article
(This article belongs to the Special Issue Phononic Crystals: Science and Applications)
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