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Applied Sciences
Special Issues
Nonlinear Optical Materials and Devices
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Nonlinear Optical Materials and Devices

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".

Deadline for manuscript submissions: 20 July 2024 | Viewed by 794

Special Issue Editor

Prof. Dr. Eiji Tokunaga

E-Mail Website
Guest Editor
Department of Physics, Faculty of Science Division I, Tokyo University of Science, Shinjuku-ku, Tokyo 162-8601, Japan
Interests: nonlinear optics; optical spectroscopy; exciton physics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Special Issue on "Nonlinear Optical Materials and Devices" aims to provide a comprehensive platform for the latest advancements and cutting-edge research in the field of nonlinear optics. This issue will focus on the development and application of novel nonlinear optical materials and devices, with an emphasis on their fundamental properties, characterization techniques, and potential applications in various fields.

We invite researchers, scientists, and experts from academia and industry to contribute original research articles, reviews, and perspectives addressing this area. The topics of interest include, but are not limited to, nonlinear optical materials, waveguides, optical frequency conversion, ultrafast optics, nonlinear imaging, and photonic devices. This Special Issue provides an opportunity for interdisciplinary collaboration and knowledge exchange, contributing to the advancement of nonlinear optics research.

Prof. Dr. Eiji Tokunaga
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. Applied Sciences is an international peer-reviewed open access semimonthly 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
  • optical materials/devices
  • nonlinear phenomena
  • waveguides
  • optical frequency conversion
  • ultrafast optics
  • nonlinear imaging techniques
  • photonic devices

Published Papers (1 paper)

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Research

15 pages, 5457 KiB  
Article
Pockels Effect of Interfacial Water on a Mono-Electrode Induced by Current Parallel to the Electrode Surface
by Kairi Morozumi, Hironori Kanemaru, Akihiro Okada, Tomonari Ichimiya, Takayoshi Kobayashi and Eiji Tokunaga
Appl. Sci. 2024, 14(5), 2076; https://doi.org/10.3390/app14052076 - 01 Mar 2024
Viewed by 582
Abstract
When an electric field is applied between two electrodes facing each other immersed in a liquid, the interfacial Pockels effect, a refractive index change proportional to the electric field, occurs in the electric double layer at the liquid–electrode interface. Here, we report that [...] Read more.
When an electric field is applied between two electrodes facing each other immersed in a liquid, the interfacial Pockels effect, a refractive index change proportional to the electric field, occurs in the electric double layer at the liquid–electrode interface. Here, we report that the Pockels effect of interfacial water can be observed even when an electric field is applied parallel to the surface of a “single” electrode in an electrolyte solution. This is a non-trivial result since the electric field parallel to the interface should not cause a broken spatial inversion symmetry, which is required for the Pockels effect. The Pockels signal was detected as a change in the transmitted light intensity due to the field-induced spectral shift of the interference fringes of the transparent conductive oxide electrode layer on a glass substrate. The magnitude of the signal increased as it approached the ends of the electrode, and the sign reversed across the center of the electrode. The electric field distribution calculated from the interfacial potential difference due to the in-plane parallel current showed that an electric field perpendicular to the interface was induced, whose distribution was consistent with the position dependence of the Pockels signal. A similar phenomenon was also observed for a single copper electrode, confirming that this is a universal effect. Full article
(This article belongs to the Special Issue Nonlinear Optical Materials and Devices)
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