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Photonics
Special Issues
Advancements in Optical Metamaterials
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Advancements in Optical Metamaterials

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

Deadline for manuscript submissions: 30 June 2025 | Viewed by 3079

Special Issue Editor

Dr. Pavel Terekhov

E-Mail Website
Guest Editor
Nanophotonics and Optoelectronics Laboratory, The Pennsylvania State University, State College, PA, USA
Interests: dielectric nanophotonics; metasurfaces; multipole decomposition; BICs; structured light

Special Issue Information

Dear Colleagues,

This Special Issue of Photonics explores the cutting edge of optical metamaterials—artificial structures employed to manipulate light in peculiar ways. During the past few decades, this area has attracted significant attention; researchers used metal, dielectric, and hybrid structures to create optical effects on demand. Optical metamaterials and metasurfaces are proposed for creating miniaturized, multifunctional devices for advanced imaging, processing, and focusing applications.

With this issue, we aim to showcase the latest advancements in optical metamaterials, highlighting their transformative potential. We strive to explore both fundamental research and practical applications; the topics of interest include but are not limited to the following:

  • Plasmonic and dielectric metasurfaces;
  • Volumetric metamaterials;
  • Novel optical phenomena;
  • Advanced fabrication techniques;
  • Light–matter interaction;
  • Metadevices for biophotonics;
  • Integrated metaoptics.

Dr. Pavel Terekhov
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

  • optical metamaterials
  • optical metasurfaces
  • plasmonic and dielectric metasurfaces

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

35 pages, 3588 KiB  
Article
Metasurface-Refractive Hybrid Lens Modeling with Vector Field Physical Optics
by Ko-Han Shih and C. Kyle Renshaw
Photonics 2025, 12(4), 401; https://doi.org/10.3390/photonics12040401 - 21 Apr 2025
Abstract
Metasurfaces (MSs) have emerged as a promising technology for optical system design. When combined with traditional refractive optics, MS-refractive hybrid lenses can enhance imaging performance, reduce optical aberrations, and introduce new functionalities such as polarization control. However, modeling these hybrid lenses requires advanced [...] Read more.
Metasurfaces (MSs) have emerged as a promising technology for optical system design. When combined with traditional refractive optics, MS-refractive hybrid lenses can enhance imaging performance, reduce optical aberrations, and introduce new functionalities such as polarization control. However, modeling these hybrid lenses requires advanced simulation techniques that usually go beyond conventional raytracing tools. This work presents a physical optics framework for modeling MS-refractive hybrid lenses. We introduce a ray-wave hybrid method that integrates multiple propagation techniques to account for vector wave propagation through various optical elements. At the center of the proposed framework is the Gaussian decomposition method for modeling beam propagation through refractive optics. Ray-path diffraction is automatically considered in this method, and complex input wavefront can be modeled as well. Several techniques are integrated to ensure accuracy in decomposing an incoming vector wave into Gaussian beamlets, such as adaptive consideration of local wavefront principal curvatures and best-fit beam width estimation from the local covariance matrix. To demonstrate the effectiveness of our method, we apply it to several hybrid lens designs, including polarization-sensitive MSs and aberration-correcting MSs integrated into complex optical systems. Full article
(This article belongs to the Special Issue Advancements in Optical Metamaterials)
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24 pages, 2793 KiB  
Article
Dispersive Sweatt Model for Broadband Lens Design with Metasurfaces
by Weiyu Chen, Ko-Han Shih and C. Kyle Renshaw
Photonics 2025, 12(1), 43; https://doi.org/10.3390/photonics12010043 - 6 Jan 2025
Cited by 1 | Viewed by 692
Abstract
The Sweatt model has been extensively used to design optical systems containing diffractive optical elements (DOEs) because it captures the dispersive characteristics of DOEs. We introduce a new dispersive Sweatt model (DSM) that can describe meta-atom (MA) dispersion, which has material and geometric [...] Read more.
The Sweatt model has been extensively used to design optical systems containing diffractive optical elements (DOEs) because it captures the dispersive characteristics of DOEs. We introduce a new dispersive Sweatt model (DSM) that can describe meta-atom (MA) dispersion, which has material and geometric contributions in addition to diffraction. It uses a wavelength-dependent scalar coefficient to modify the diffractive dispersion and describe the dispersion of a given MA basis. This provides a robust framework to design systems containing metasurface (MS) elements while including their unique dispersive properties in the design optimization. Importantly, the DSM is based on ray optics and enables the design of MS-containing systems using conventional optical design software such as Zemax and Code V. We use the DSM to demonstrate the design of a hybrid refractive/MS achromatic doublet for the midwave infrared (MWIR) band. The design example includes multiple wavelengths and field angles during optimization and demonstrates excellent agreement between the DSM and real hybrid lens performance modeled using wave optics. We discuss the limits of the DSM and present a simple model to predict performance limits due to phase mismatch at Fresnel zone boundaries. Full article
(This article belongs to the Special Issue Advancements in Optical Metamaterials)
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9 pages, 4244 KiB  
Article
Carbon Dot-Decorated Polystyrene Microspheres for Whispering-Gallery Mode Biosensing
by Anton A. Starovoytov, Evgeniia O. Soloveva, Kamilla Kurassova, Kirill V. Bogdanov, Irina A. Arefina, Natalia N. Shevchenko, Tigran A. Vartanyan, Daler R. Dadadzhanov and Nikita A. Toropov
Photonics 2024, 11(5), 480; https://doi.org/10.3390/photonics11050480 - 20 May 2024
Cited by 4 | Viewed by 1788
Abstract
Whispering gallery mode (WGM) resonators doped with fluorescent materials find impressive applications in biological sensing. They do not require special conditions for the excitation of WGM inside that provide the basis for in vivo sensing. Currently, the problem of materials for in vivo [...] Read more.
Whispering gallery mode (WGM) resonators doped with fluorescent materials find impressive applications in biological sensing. They do not require special conditions for the excitation of WGM inside that provide the basis for in vivo sensing. Currently, the problem of materials for in vivo WGM sensors are substantial since their fluorescence should have stable optical properties as well as they should be biocompatible. To address this we present WGM microresonators of 5–7 μm, where the dopant is made of carbon quantum dots (CDs). CDs are biocompatible since they are produced from carbon and demonstrate bright optical emission, which shows different bands depending on the excitation wavelength. The WGM sensors developed here were tested as label-free biosensors by detecting bovine serum albumin molecules. The results showed WGM frequency shifting, with the limit of detection down to 10−16 M level. Full article
(This article belongs to the Special Issue Advancements in Optical Metamaterials)
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