Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.5
2.7
Journals
Applied Sciences
Special Issues
Advances of Interfacial Optics
share announcement

Advances of Interfacial Optics

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

Deadline for manuscript submissions: closed (20 September 2022) | Viewed by 6889

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 last two decades have witnessed innovative advances in optical science on surfaces and interfaces. New concepts, materials, and artificial structures that did not exist in the last century have been proposed, discovered, and created, and knowledge is being continually updated. Surface plasmon polaritons and surface nonlinear optics, which have been studied for a long time, are also becoming more and more attractive fields due to their interaction with new concepts, such as topological materials and meta-surfaces, that have appeared in this century. This Special Issue focuses on the effects, phenomena, and applications in which light plays an essential role at the interface between materials with different properties, one of which can be a vacuum. In optics, since the surface lacks spatial inversion symmetry, it brings about surface-specific effects, such as surface selection rules in spectroscopy, and the second-order nonlinear optical effect. Since interfacial science is interdisciplinary, any field is acceptable, including physics, chemistry, biology, engineering, etc., although contributions must move beyond the effects of simply reducing dimensionality, such as the effects that occur in two-dimensional materials alone.  We look forward to receiving submissions of fascinating papers from a wide range of fields that transcend the expectations and expertise of the guest editors.

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

  • surface nonlinear optics
  • surface plasmon
  • total internal reflection
  • electric double layer
  • meta-surface
  • topological surface state
  • surface exciton
  • surface phonon
  • space charge layer
  • surface enhanced Raman spectroscopy

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

12 pages, 3269 KiB  
Article
Interfacial Pockels Effect of Solvents with a Larger Static Dielectric Constant than Water and an Ionic Liquid on the Surface of a Transparent Oxide Electrode
by Akihiro Okada, Takayoshi Kobayashi and Eiji Tokunaga
Appl. Sci. 2022, 12(5), 2454; https://0-doi-org.brum.beds.ac.uk/10.3390/app12052454 - 26 Feb 2022
Cited by 1 | Viewed by 1466
Abstract
The optical Pockels effect is a change in the refractive index proportional to an applied electric field. As a typical example of the interfacial Pockels effect occurring at interfaces where the spatial inversion symmetry is broken, it is known that water in the [...] Read more.
The optical Pockels effect is a change in the refractive index proportional to an applied electric field. As a typical example of the interfacial Pockels effect occurring at interfaces where the spatial inversion symmetry is broken, it is known that water in the electric double layer (EDL) on the transparent oxide electrode surface has a large Pockels coefficient, but the physical factors that determine its size are not clear. Therefore, we experimentally studied the Pockels effect of water and other characteristic liquids—formamide (FA), methylformamide (NMF) (these two have larger static dielectric constants than water), dimethylformamide (DMF), and an ionic liquid that is itself salts (IL, [BMIM] [BF4])—and evaluated their Pockels coefficients in the EDL on the transparent electrode surface. The magnitude of the Pockels coefficient was found to be in the order of water, DMF, FA, NMF, and IL, with the magnitude of the static dielectric constant not being an important factor. Full article
(This article belongs to the Special Issue Advances of Interfacial Optics)
►▼ Show Figures

Figure 1

12 pages, 4180 KiB  
Article
Evolvement Investigation of Secondary Electron Emission for Ultrathin MgO Coatings Prepared by Atomic Layer Deposition
by Xiangping Zhu, Junjiang Guo, Xiangxin Li, Rundong Zhou, Dan Wang and Wei Zhao
Appl. Sci. 2021, 11(11), 4801; https://0-doi-org.brum.beds.ac.uk/10.3390/app11114801 - 24 May 2021
Cited by 8 | Viewed by 2176
Abstract
MgO is a kind of high secondary electron yield (SEY) material with important applications in electron multipliers. MgO coatings can be used as the electron emission layer for multiplier dynode to improve the electron gain significantly. However, the SEY investigation on ultrathin MgO [...] Read more.
MgO is a kind of high secondary electron yield (SEY) material with important applications in electron multipliers. MgO coatings can be used as the electron emission layer for multiplier dynode to improve the electron gain significantly. However, the SEY investigation on ultrathin MgO coatings is not complete and needed to be supplemented urgently. In this work, a series of MgO coatings with increasing thickness were prepared by atomic layer deposition. SEY properties and energy spectra were characterized, and the effect of coating thickness on SEY was systematically analyzed. Experimental results show that SEY of MgO/Si samples rises as the coating thickness increases. Merely, SEY almost does not change with the coating thickness when the thickness exceeds 30 nm. Then, a SEY semi-empirical theory was employed to interpret the SEY regularities of MgO coatings by regarding the coating samples as ideal double-layer structures. Theoretical calculation quantitatively explained the SEY variation observed during the experiments, and further quantified the SEY contribution level of top coating and bottom substrate for the 1 nm and 20 nm MgO coatings. The work is of great significance for comprehending the SEY of ultrathin MgO coatings and expanding the applications of nanoscale coatings with high SEY. Full article
(This article belongs to the Special Issue Advances of Interfacial Optics)
►▼ Show Figures

Figure 1

17 pages, 7824 KiB  
Article
Electric-Field Induced Shift in the Plasmon Resonance Due to the Interfacial Pockels Effect of Water on a Silver Surface
by Yurina Nishi, Ryosuke Watanabe, Subaru Sasaki, Akihiro Okada, Keisuke Seto, Takayoshi Kobayashi and Eiji Tokunaga
Appl. Sci. 2021, 11(5), 2152; https://0-doi-org.brum.beds.ac.uk/10.3390/app11052152 - 28 Feb 2021
Cited by 9 | Viewed by 2259
Abstract
In the research on application of an optical modulator used for information communication, materials having a large Pockels effect, a refractive index change proportional to the electric-field, are required. It is known that the interfacial water on the surface of transparent oxide electrodes [...] Read more.
In the research on application of an optical modulator used for information communication, materials having a large Pockels effect, a refractive index change proportional to the electric-field, are required. It is known that the interfacial water on the surface of transparent oxide electrodes has a giant Pockels coefficient, which is an order of magnitude larger than the solid Pockels crystals practically used. It is important to know the Pockels coefficient of water on not only an oxide surface, but also a metal surface to understand the mechanism of the interfacial Pockels effect of water. However, a method has not yet been established for evaluating the coefficient of water–metal interface. Here we present an evaluation method of the Pockels coefficient of interfacial water on a metal (silver) surface from the spectral shift of the surface plasmon polariton resonance due to electric-field induced refractive index change of the interfacial water. The Pockels coefficient of interfacial water on Ag was evaluated as |r33|=5±1 pm/V, without need for exact knowledge of the thickness of the interfacial layer (electric double layer of water) as long as the penetration depth of the plasmon is larger than the thickness. Full article
(This article belongs to the Special Issue Advances of Interfacial Optics)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop