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Photonics
Special Issues
Functional Nanophotonic Materials and Structures
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Functional Nanophotonic Materials and Structures

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optical Interaction Science".

Deadline for manuscript submissions: closed (15 January 2022) | Viewed by 3156

Special Issue Editors

Prof. Dr. Jae Yong Suh

E-Mail Website
Guest Editor
Physics, Michigan Technological University, Houghton, MI 49931, USA
Interests: nanophotonics; quantum materials; coherent optical processes; topological photonics; time-resolved laser spectroscopy
Prof. Dr. Ankun Yang

E-Mail Website
Guest Editor
Mechanical Engineering, Oakland University, Rochester, MI 48309, USA
Interests: nanophotonics; light–matter interactions; 2D materials; in situ and operando microscopy and spectroscopy

Special Issue Information

Dear Colleagues,

This Special Issue invites contributions on the topic of Functional Nanophotonic Materials and Structures.

Exquisite control of light has been realized by functional optical materials and structures at ever-decreasing length and time scales and ever-increasing precision. At the nanometer scale, where researchers have developed the most sophisticated fabrication tools, much work has been devoted to probing emergent quantum phenomena in nanomaterials and to creating new structures with such novel quantum and coherent optical properties. Applications range from new sensing and imaging technologies to optoelectronics and quantum information science. At present, research directions often require the capabilities of controlling or modulating optical functionalities by external stimuli, including optical, electrical, thermal, magnetic, and mechanical measures such as photon/electron injections into materials and the mechanical deformation of materials. These can lead to active light–matter interactions, which may allow dynamic control of the properties and phases of the materials.

We will consider both theoretical and experimental papers covering, but not limited to, the following topics:

  • Active metasurfaces and flat optics;
  • Thermochromic windows and phase-change nanomaterials;
  • Valley- or layer-engineered 2D materials;
  • Topological or metallo-dielectric structures with tunable photonic band structures;
  • Cavity–emitter (i.e., molecules, ions, defect centers, quantum dots) interactions.

Prof. Dr. Jae Yong Suh
Prof. Dr. Ankun Yang
Guest Editors

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

  • Metasurfaces, flat optics
  • Thermochromic, phase change
  • 2D materials
  • Topological photonics
  • Optical cavities
  • Light–matter interactions

Published Papers (1 paper)

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Research

20 pages, 3721 KiB  
Article
High-Density Dynamics of Laser Wakefield Acceleration from Gas Plasmas to Nanotubes
by Bradley Scott Nicks, Ernesto Barraza-Valdez, Sahel Hakimi, Kyle Chesnut, Genevieve DeGrandchamp, Kenneth Gage, David Housley, Gregory Huxtable, Gerard Lawler, Daniel Lin, Pratik Manwani, Eric Nelson, Gabriel Player, Michael Seggebruch, James Sweeney, Joshua Tanner, Kurt Thompson and Toshiki Tajima
Photonics 2021, 8(6), 216; https://doi.org/10.3390/photonics8060216 - 11 Jun 2021
Cited by 5 | Viewed by 2646
Abstract
The electron dynamics of laser wakefield acceleration (LWFA) is examined in the high-density regime using particle-in-cell simulations. These simulations model the electron source as a target of carbon nanotubes. Carbon nanotubes readily allow access to near-critical densities and may have other advantageous properties [...] Read more.
The electron dynamics of laser wakefield acceleration (LWFA) is examined in the high-density regime using particle-in-cell simulations. These simulations model the electron source as a target of carbon nanotubes. Carbon nanotubes readily allow access to near-critical densities and may have other advantageous properties for potential medical applications of electron acceleration. In the near-critical density regime, electrons are accelerated by the ponderomotive force followed by the electron sheath formation, resulting in a flow of bulk electrons. This behavior represents a qualitatively distinct regime from that of low-density LWFA. A quantitative entropy index for differentiating these regimes is proposed. The dependence of accelerated electron energy on laser amplitude is also examined. For the majority of this study, the laser propagates along the axis of the target of carbon nanotubes in a 1D geometry. After the fundamental high-density physics is established, an alternative, 2D scheme of laser acceleration of electrons using carbon nanotubes is considered. Full article
(This article belongs to the Special Issue Functional Nanophotonic Materials and Structures)
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