Nanomaterials for Photonics and Optoelectronics: Practical Applications and Advances

Topic Information

Dear Colleagues,

Novel materials with properties that are relevant for technological applications addressing societal demands have motivated the search for even more innovative materials: new types of glass, glass ceramics, hybrid materials, colloids, polymers, and quantum dots, among others. This Topic will focus on diverse aspects of innovative methods for the synthesis and characterization of these materials, highlighting their applications for photonics and optoelectronics and reviewing recent advances in the field. This issue will cover different emerging topics based on advanced nanomaterials for new light sources, photovoltaic devices, optical amplifiers, random lasers, and technological solutions for flexible photonics, among others. We intend to make this Topic an important research reference for those wanting to learn more about nanomaterials and the way they can be used in photonics and optoelectronics.

We look forward to receiving your contributions.

Prof. Dr. Luciana R. P. Kassab
Dr. Raúl Rangel-Rojo
Dr. Rafael Salas-Montiel
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Nanomaterials nanomaterials	4.4	8.5	2010	14.1 Days	CHF 2400	Submit
Polymers polymers	4.7	8.0	2009	14.5 Days	CHF 2700	Submit
Photonics photonics	2.1	2.6	2014	14.9 Days	CHF 2400	Submit
Nanomanufacturing nanomanufacturing	-	-	2021	28.4 Days	CHF 1000	Submit
Crystals crystals	2.4	4.2	2011	11.1 Days	CHF 2100	Submit
Applied Sciences applsci	2.5	5.3	2011	18.4 Days	CHF 2400	Submit
Optics optics	1.1	2.2	2020	18.4 Days	CHF 1200	Submit

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Published Papers (1 paper)

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All Nanomaterials Polymers Photonics Nanomanufacturing Crystals Applied Sciences Optics

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14 pages, 15441 KiB  

Open AccessCommunication

Numerical Study of Electric Field Enhancement in Inverted-Pyramid Gold Arrays with Tunable Spacing

by Yaumalika Arta, Iman Santoso, Hao Chang, Ying-Pin Tsai, Fu-Li Hsiao, Tsung-Shine Ko and Yang-Wei Lin

Photonics 2025, 12(5), 522; https://doi.org/10.3390/photonics12050522 - 21 May 2025

Abstract

This study presents a comprehensive numerical and experimental investigation of electric field enhancement in inverted-pyramidal gold (Au) array substrates, focusing on variable inter-pyramidal spacing for surface-enhanced Raman scattering (SERS) applications. We conducted a series of finite element method (FEM) simulations to model the [...] Read more.

This study presents a comprehensive numerical and experimental investigation of electric field enhancement in inverted-pyramidal gold (Au) array substrates, focusing on variable inter-pyramidal spacing for surface-enhanced Raman scattering (SERS) applications. We conducted a series of finite element method (FEM) simulations to model the spatial distribution of electromagnetic fields within plasmonic metasurfaces under 780 nm laser excitation. The results show that reducing the spacing between inverted pyramidal structures from 10 μm to 3.2 μm significantly increases the electric field intensity at both the tip and edge regions of the inverted-pyramidal Au structure, with maximum fields reaching 6.75 × 10⁷ V/m. Experimental SERS measurements utilizing 4-mercaptobenzoic acid as a Raman reporter support the simulation findings, indicating enhanced signal intensity in closely spaced configurations. These results confirm that geometric field concentration and plasmonic coupling are the dominant mechanisms responsible for SERS enhancement in these systems. This work provides a strategic framework for optimizing the geometry of plasmonic substrates to improve the sensitivity and reliability of SERS-based sensing platforms. Full article

(This article belongs to the Topic Nanomaterials for Photonics and Optoelectronics: Practical Applications and Advances)

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