Manipulated Lightwaves for Micro- and Nano-Scaled Structures

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A:Physics".

Deadline for manuscript submissions: closed (15 December 2023) | Viewed by 2604

Special Issue Editor


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Guest Editor
Centre for Advanced Material and Energy Sciences (CAMES), Universiti Brunei Darussalam (UBD), Gadong BE1410, Brunei
Interests: novel nanofabrications for advanced nanophotonic; optoelectronic devices and on characteristics; applications of localized; propagating plasmons at hybrid dielectric/nanometal structures

Special Issue Information

Dear Colleagues,

Micro-nano optics is one of the most active frontiers in the current development of optics. It is irreplaceable in optical communication, storage, sensing measurement, solid-state lighting, biomedicine, security, green energy, and other fields. This Special Issue highlights the advancement of guided lightwaves in applications to nanomaterials and metamaterials, including simulations, fabrications, measurements and characterization. The scope of the Special Issue includes, but is not limited to, the following topics:

  • Nanomaterials, metamaterials, and metasurfaces for photonic devices;
  • Theory, fabrication, measurement, and applications of micro- and nano-scale sensors and metal-insulator and metal waveguide sensors;
  • Photonic crystals and photonic crystal fiber micro- and nano-scaled structures for industrial, environmental, biological, and energy applications, including chemical, medical and biological applications, food and environmental monitoring, structural health monitoring and traditional and renewable energy monitoring;
  • Novel concepts and mechanisms of guided lightwaves for micro- and nano-scaled structures;
  • Advanced materials and structure technologies of guided lightwaves for sensing and measurements;

Nonlinear optics theory and applications of second harmonic generation (SHG) and third harmonic generation (THG) adsorption/detection/deterioration water and wastewater treatment plasmonic photocatalysts. 

Prof. Dr. Chou Chau Yuan Fong
Guest Editor

Manuscript Submission Information

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Keywords

  • nanomaterials
  • metamaterials
  • metasurfaces
  • photonic crystals
  • photonic crystal fibers
  • micro- and nano-scaled structures
  • third harmonic generation
  • second harmonic generation
  • deterioration
  • detection
  • adsorption
  • water and wastewater treatment
  • plasmonic photocatalysts

Published Papers (2 papers)

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Research

15 pages, 1324 KiB  
Article
Pump–Probe Optical Response and Four-Wave Mixing in a Zinc–Phthalocyanine–Metal Nanoparticle Hybrid System
by Natalia Domenikou, Spyridon G. Kosionis, Ioannis Thanopulos, Vassilios Yannopapas and Emmanuel Paspalakis
Micromachines 2023, 14(9), 1735; https://doi.org/10.3390/mi14091735 - 04 Sep 2023
Viewed by 651
Abstract
We investigate theoretically the optical response of a zinc–phthalocyanine molecular quantum system near a gold spherical nanoparticle with a radius of 80 nm. The quantum system is irradiated by a strong pump and a weak probe coherent electromagnetic field. Using the density matrix [...] Read more.
We investigate theoretically the optical response of a zinc–phthalocyanine molecular quantum system near a gold spherical nanoparticle with a radius of 80 nm. The quantum system is irradiated by a strong pump and a weak probe coherent electromagnetic field. Using the density matrix methodology, we obtain analytical expressions for the absorption, dispersion, and the four-wave-mixing coefficients. The influence of the nanoparticle on the spontaneous decay rate of the quantum system, as well as on the external fields, are obtained by an electromagnetic Green’s tensor method. The spectroscopic parameters of the molecule are also obtained by ab initio methods. For the studied optical spectra, we find that, below a critical distance between the molecule and the plasmonic nanoparticle, determined by the minimal value of the effective Rabi frequency, single-peaked spectra are observed. Above this critical distance, the spectra exhibit the characteristic Mollow-shaped profiles. The enhancement of the pump field detuning induces the shift of the sideband resonances away from the origin. Lastly, and most importantly, regardless of the value of the detuning, the optical response of the system is maximized for an intermediate value of the interparticle distance. Full article
(This article belongs to the Special Issue Manipulated Lightwaves for Micro- and Nano-Scaled Structures)
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18 pages, 5339 KiB  
Article
Visible-Range Multiple-Channel Metal-Shell Rod-Shaped Narrowband Plasmonic Metamaterial Absorber for Refractive Index and Temperature Sensing
by Chung-Ting Chou Chao, Muhammad Raziq Rahimi Kooh, Chee Ming Lim, Roshan Thotagamuge, Abdul Hanif Mahadi and Yuan-Fong Chou Chau
Micromachines 2023, 14(2), 340; https://doi.org/10.3390/mi14020340 - 28 Jan 2023
Cited by 18 | Viewed by 1661
Abstract
Multiple resonance modes in an optical absorber are necessary for nanophotonic devices and encounter a challenge in the visible range. This article designs a multiple-channel plasmonic metamaterial absorber (PMA) that comprises a hexagonal arrangement of metal-shell nanorods in a unit cell over a [...] Read more.
Multiple resonance modes in an optical absorber are necessary for nanophotonic devices and encounter a challenge in the visible range. This article designs a multiple-channel plasmonic metamaterial absorber (PMA) that comprises a hexagonal arrangement of metal-shell nanorods in a unit cell over a continuous thin metal layer, operating in the visible range of the sensitive refractive index (RI) and temperature applications. Finite element method simulations are utilized to investigate the physical natures, such as the absorptance spectrum, magnetic flux and surface charge densities, electric field intensity, and electromagnetic power loss density. The advantage of the proposed PMA is that it can tune either three or five absorptance channels with a narrowband in the visible range. The recorded sensitivity and figure of merit (S, FOM) for modes 1–5 can be obtained (600.00 nm/RIU, 120.00), (600.00 nm/RIU, 120.00 RIU−1), (600.00 nm/RIU, 120.00 RIU−1), (400.00 nm/RIU, 50.00 RIU−1), and (350.00 nm/RIU, 25.00 RIU−1), respectively. Additionally, the temperature sensitivity can simultaneously reach 0.22 nm/°C for modes 1–3. The designed PMA can be suitable for RI and temperature sensing in the visible range. Full article
(This article belongs to the Special Issue Manipulated Lightwaves for Micro- and Nano-Scaled Structures)
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