Advances in Nonlinear Optics

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

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 3864

Special Issue Editor

University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China
Interests: nonlinear optics; nanophotonics; non-hermitian optics; optical microcavity; nonlinear optical imaging; super-resolution microscopy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is focused on the most recent advances in nonlinear optics and its applications. Nonlinear optical phenomena play a key role in many crucial areas like information and energy, from ultrafast optical processing and supercontinuum generation to new quantum technologies and novel microscopy techniques, and over broad spectral regimes, from THz to gamma-ray frequencies. The current Issue covers all aspects of nonlinear optics, including new phenomena, novel devices, advanced materials, and applications. Papers are welcome that describe advances in any aspect of nonlinear optics and its applications particularly in, but not limited to, the following areas:

  • Ultrafast all-optical processing;
  • Nonlinear waveguides and optical fibers;
  • Novel nonlinear materials;
  • Nonlinear effects in nanostructures: plasmonics and metamaterials;
  • Frequency combs;
  • Nonlinear effects in microresonators.
  • Terahertz/microwave photonics;
  • Nonlinear imaging;
  • Optical supercontinuum;
  • Soliton and nonlinear localization effects;
  • Nonlinear propagation and filamentation;
  • Ultrafast dynamics and instabilities;
  • Nonlinear quantum effects;
  • Nonlinear optics for quantum information;
  • Nonlinear topological, non-Hermitian systems;
  • Attosecond and extreme nonlinear optics.

Dr. Wenjie Wan
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

  • nonlinear optics
  • nonlinear photonics
  • nonlinear quantum optics

Published Papers (2 papers)

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Research

12 pages, 464 KiB  
Article
On a Different Vision of Kerr Law in Nonlinear Optical Waveguide Theory
by Yury Smirnov, Stanislav Tikhov and Dmitry Valovik
Photonics 2022, 9(12), 901; https://doi.org/10.3390/photonics9120901 - 25 Nov 2022
Cited by 2 | Viewed by 1200
Abstract
This paper focuses on electromagnetic transverse-electric wave propagation in a planar shielded waveguide filled with nonlinear medium. Instead of using the standard local Kerr (cubic) nonlinearity, we suggest a (nonlocal) modification of this law. In comparison with the standard formula, this modification does [...] Read more.
This paper focuses on electromagnetic transverse-electric wave propagation in a planar shielded waveguide filled with nonlinear medium. Instead of using the standard local Kerr (cubic) nonlinearity, we suggest a (nonlocal) modification of this law. In comparison with the standard formula, this modification does not produce infinitely many nonperturbative guided modes. In this research, we present the dispersion equation for propagation constants, eigenwaves and propagation constants via explicit formulas. The found results are compared with the ones relating to the corresponding linear problem and the nonlinear one with the classical Kerr’s law. Numerical results are also presented and discussed. Full article
(This article belongs to the Special Issue Advances in Nonlinear Optics)
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11 pages, 950 KiB  
Article
Attosecond Transient Absorption Below the Excited States
by Jinxing Xue, Xinliang Wang, Meng Wang, Cangtao Zhou and Shuangchen Ruan
Photonics 2022, 9(4), 269; https://doi.org/10.3390/photonics9040269 - 18 Apr 2022
Viewed by 2011
Abstract
In this study, the attosecond transient absorption (ATA) spectrum below the excited states of the helium atom was investigated by numerically solving the fully three-dimensional time-dependent Schrödinger equation. Under single-active electron approximation, the helium atom was illuminated by a combined field comprising of [...] Read more.
In this study, the attosecond transient absorption (ATA) spectrum below the excited states of the helium atom was investigated by numerically solving the fully three-dimensional time-dependent Schrödinger equation. Under single-active electron approximation, the helium atom was illuminated by a combined field comprising of extreme ultraviolet (XUV) and delayed infrared (IR) fields. The response function demonstrates that the absorption near the central frequency (ωX) of the XUV field is periodically modulated during the overlapping between the XUV and IR pulses. Using the time-dependent perturbation, the absorption near ωX is attributed to the wavepacket excited by the XUV pulse. The wave function oscillating at the frequency of the XUV pulse was obtained. Furthermore, the chirp-dependent absorption spectrum near ωX potentially provides an all-optical method for characterizing the attosecond pulse duration. Finally, these results can extend to other systems, such as solids or liquids, indicating a potential for application in photonic devices, and they may be meaningful for quantum manipulation. Full article
(This article belongs to the Special Issue Advances in Nonlinear Optics)
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