Strong Light Fields Coupled with Plasmonic Nano-Structures

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

Deadline for manuscript submissions: closed (20 December 2022) | Viewed by 5823

Special Issue Editors


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Guest Editor
Guangdong Technion–Israel Institute of Technology, Shantou 515063, China
Interests: attosecond physics; strong laser matter interaction; nanophotonics; ultrafast optics; plasmonics

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Guest Editor
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
Interests: advancing ultra-precision light source technology from an IR to an EUV regime using the optical comb of the femtosecond pulse laser, and its interdisciplinary applications including precision spectroscopy, time/frequency standards, precision laser ranging, optical metrology, and nano/micro material processing
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Guest Editor
Department of Optics and Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan 46241, Korea
Interests: ultrafast optics; nanophotonics; plasmonics; optical frequency comb; high harmonic generation

Special Issue Information

Dear Colleagues,

The interaction of strong light fields with plasmonic nanostructures presents a particular arena to study laser-induced electron dynamics in its natural temporal and spatial scales. When a strong and short laser pulse interacts with metal or dielectric nanotargets, nanostructures, nanoparticles, etc., plasmonic fields are generated. These fields present peculiar properties, namely, an enhancement with respect to incident field and spatial variations at a nanometric scale. The attosecond physics community is facing exciting times ahead, considering it is merging with nanoscale physics. This marriage calls for groundbreaking discoveries.

The Present Special issue is devoted to recent advances, both experimental and theoretical, in the interaction of strong and short laser pulses with nanotargets. Subjects of interest include but are not limited to the following areas:

Laser–matter interaction driven by plasmonic fields;

Nanophotonics;
Plasmonics;
Nanotarget design;
Strong light fields;
Ultrafast optics;
Strong field physics.

Prof. Dr. Marcelo Ciappina
Prof. Dr. Young-Jin Kim
Prof. Dr. Seungchul Kim
Guest Editors

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Keywords

  • ultrafast optics
  • nanophotonics
  • plasmonics
  • optical frequency comb
  • attosecond physics

Published Papers (2 papers)

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Research

10 pages, 3979 KiB  
Communication
Subnanometer-Resolution Nanoparticle Sensing through the Strong Coupling between Surface Plasmon Polariton Whispering Gallery Resonances and Localized Surface Plasmon
by Han Yang and Yue-Gang Chen
Photonics 2023, 10(2), 212; https://doi.org/10.3390/photonics10020212 - 15 Feb 2023
Viewed by 1249
Abstract
High-resolution nanoparticle sensing is very important, and many schemes have been proposed to achieve this goal. Circular nanocavities in which surface plasmon polariton (SPP) whispering gallery mode (WGM) resonances were excited were designed to sense particles of ultra-small size and with high resolution. [...] Read more.
High-resolution nanoparticle sensing is very important, and many schemes have been proposed to achieve this goal. Circular nanocavities in which surface plasmon polariton (SPP) whispering gallery mode (WGM) resonances were excited were designed to sense particles of ultra-small size and with high resolution. Localized surface plasmon resonances (LSPRs) were excited when a metal particle was set in the circular cavity. The SPP WGM split into symmetric mode (SM) and antisymmetric mode (ASM) due to the LSPRs scattering into the SPPs. The strong coupling between SM resonance and LSPRs generated positive and opposite modes, which were sensitive to the variation in nanoparticle size and position. Even a small nanometer-sized metal particle introduced LSPRs and produced mode splitting. The WGM mode splitting induced by LSPRs reduced the sensing limit. The simulation results show that 1 nm changes in nanoparticle radius and position led to SM 11.8 nm and 10.2 nm wavelength shifts, respectively. This means that variations of 0.09 nm in size and 0.1 nm in position can be sensed with a 1 nm spectral resolution. The strong coupling between SPP WGM and LSPRs can be applied to sense at a subnanometer resolution. Full article
(This article belongs to the Special Issue Strong Light Fields Coupled with Plasmonic Nano-Structures)
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13 pages, 2735 KiB  
Article
Wavelength-Dependent Features of Photoelectron Spectra from Nanotip Photoemission
by Xiao-Yuan Wu, Hao Liang, Marcelo F. Ciappina and Liang-You Peng
Photonics 2020, 7(4), 129; https://doi.org/10.3390/photonics7040129 - 11 Dec 2020
Cited by 5 | Viewed by 3901
Abstract
If a metal nanotip is irradiated with the light of a wavelength much larger than the nanotip’s radius of curvature, optical near-fields become excited. These fields are responsible for distinct strong-field electron dynamics, due to both the field enhancement and spatial localization. By [...] Read more.
If a metal nanotip is irradiated with the light of a wavelength much larger than the nanotip’s radius of curvature, optical near-fields become excited. These fields are responsible for distinct strong-field electron dynamics, due to both the field enhancement and spatial localization. By classical trajectory, Monte Carlo (CTMC) simulation, and the integration of the time-dependent Schrödinger equation (TDSE), we find that the photoelectron spectra for nanotip strong-field photoemission, irradiated by mid-infrared laser pulses, present distinctive wavelength-dependent features, especially in the mid- to high-electron energy regions, which are different from the well known ones. By extracting the electron trajectories from the CTMC simulation, we investigate these particular wavelength-dependent features. Our theoretical results contribute to understanding the photoemission and electron dynamics at nanostructures, and pave new pathways for designing high-energy nanometer-sized ultrafast electron sources. Full article
(This article belongs to the Special Issue Strong Light Fields Coupled with Plasmonic Nano-Structures)
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