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Photonics
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Nonlinear Dielectric Photonics and Metasurfaces
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Nonlinear Dielectric Photonics and Metasurfaces

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: closed (31 July 2018) | Viewed by 35973

Special Issue Editors

Prof. Dr. Boris Lukiyanchuk

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Guest Editor
Data Storage Institute, Agency for Science, Technology and Research Singapore, Singapore
Prof. Dr. Andrey Fedyanin

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Guest Editor
Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Both original research papers and review articles are welcome to present in this Special Issue. Technical topics include but not limited to the following:

  • Mie Scattering
  • Optical Magnetism
  • All-Dielectric Nanophotonics
  • Nonlinear Optics
  • Ultrafast Phenomena
  • Subwavelength Nanostructures and Metasurfaces
  • Oligomers of Nanoparticles
  • Fano Resonances
  • Structured Light

Prof. Dr. Boris Lukiyanchuk
Prof. Dr. Andrey Fedyanin
Guest Editors

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Published Papers (7 papers)

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Research

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9 pages, 1375 KiB  
Article
Coupled Chiral Optical Tamm States in Cholesteric Liquid Crystals
by Maxim V. Pyatnov, Ivan V. Timofeev, Stepan Ya. Vetrov and Natalya V. Rudakova
Photonics 2018, 5(4), 30; https://doi.org/10.3390/photonics5040030 - 28 Sep 2018
Cited by 3 | Viewed by 3958
Abstract
The modes formed by two coupled chiral optical Tamm states localized at the interfaces between a photonic cholesteric liquid crystal conjugated with polarization-preserving anisotropic mirrors have been analytically and numerically investigated. These modes are only excited at the diffracting polarization of incident light. [...] Read more.
The modes formed by two coupled chiral optical Tamm states localized at the interfaces between a photonic cholesteric liquid crystal conjugated with polarization-preserving anisotropic mirrors have been analytically and numerically investigated. These modes are only excited at the diffracting polarization of incident light. As the cholesteric layer thickness decreases, the spectral splitting of the localized state frequency is predicted. The splitting value depends on the crystal layer thickness. At the nondiffracting circular polarization, the localized modes are not excited, and the system becomes similar to the Fabry–Pérot cavity containing an anisotropic helical structure. Full article
(This article belongs to the Special Issue Nonlinear Dielectric Photonics and Metasurfaces)
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11 pages, 4907 KiB  
Article
Highly-Efficient Longitudinal Second-Harmonic Generation from Doubly-Resonant AlGaAs Nanoantennas
by Lei Xu, Mohsen Rahmani, Daria Smirnova, Khosro Zangeneh Kamali, Guoquan Zhang, Dragomir Neshev and Andrey E. Miroshnichenko
Photonics 2018, 5(3), 29; https://doi.org/10.3390/photonics5030029 - 17 Sep 2018
Cited by 23 | Viewed by 5447
Abstract
We design an asymmetric nonlinear optical nanoantenna composed of a dielectric nanodisc and an adjacent nanobar. The proposed composite structure made of AlGaAs exhibits resonant response at both the fundamental and doubled frequencies. Being driven by the strong magnetic dipole resonance at the [...] Read more.
We design an asymmetric nonlinear optical nanoantenna composed of a dielectric nanodisc and an adjacent nanobar. The proposed composite structure made of AlGaAs exhibits resonant response at both the fundamental and doubled frequencies. Being driven by the strong magnetic dipole resonance at the pump wavelength and a high-quality mode at the harmonic wavelength, the efficient second-harmonic radiation is generated predominantly along the vertical directions under the normally incident plane-wave excitation. Full article
(This article belongs to the Special Issue Nonlinear Dielectric Photonics and Metasurfaces)
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11 pages, 2933 KiB  
Article
Fano Resonance Enhanced Surface Plasmon Resonance Sensors Operating in Near-Infrared
by Tianye Huang, Shuwen Zeng, Xiang Zhao, Zhuo Cheng and Perry Ping Shum
Photonics 2018, 5(3), 23; https://doi.org/10.3390/photonics5030023 - 10 Aug 2018
Cited by 30 | Viewed by 5822
Abstract
In the phase-sensitivity-based surface plasmon resonance (SPR) sensing scheme, the highest phase jump usually happens at the darkness or quasi-darkness reflection point, which results in low power for detection. To overcome such a limitation, in this paper, a waveguide-coupled SPR configuration is proposed [...] Read more.
In the phase-sensitivity-based surface plasmon resonance (SPR) sensing scheme, the highest phase jump usually happens at the darkness or quasi-darkness reflection point, which results in low power for detection. To overcome such a limitation, in this paper, a waveguide-coupled SPR configuration is proposed to work at near-infrared. The coupling between surface plasmon polariton (SPP) mode and photonic waveguide (PWG) mode results in electromagnetically induced transparency (EIT) and asymmetric Fano resonance (FR). Near the resonance, the differential phase between p-polarized and s-polarized incident waves experience drastic variation upon change of the surrounding refractive index. More importantly, since the FR occurs at the resonance slope of SPP mode, the corresponding phase change is accompanied with relatively high reflectivity, which is essential for signal-to-noise ratio (SNR) enhancement and power consumption reduction. Phase sensitivity up to 106 deg/RIU order with a minimum SPR reflectivity higher than 20% is achieved. The proposed scheme provides an alternative approach for high-performance sensing applications using FR. Full article
(This article belongs to the Special Issue Nonlinear Dielectric Photonics and Metasurfaces)
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13 pages, 11519 KiB  
Article
Two Types of Localized States in a Photonic Crystal Bounded by an Epsilon near Zero Nanocomposite
by Rashid G. Bikbaev, Stepan Ya. Vetrov and Ivan V. Timofeev
Photonics 2018, 5(3), 22; https://doi.org/10.3390/photonics5030022 - 9 Aug 2018
Cited by 13 | Viewed by 4849
Abstract
The spectral properties of a one-dimensional photonic crystal bounded by a resonant absorbing nanocomposite layer with the near-zero permittivity have been studied. The problem of calculating the transmittance, reflectance, and absorptance spectra of such structures at the normal and oblique incidence of light [...] Read more.
The spectral properties of a one-dimensional photonic crystal bounded by a resonant absorbing nanocomposite layer with the near-zero permittivity have been studied. The problem of calculating the transmittance, reflectance, and absorptance spectra of such structures at the normal and oblique incidence of light has been solved. It is shown that, depending on the permittivity sign near zero, the nanocomposite is characterized by either metallic or dielectric properties. The possibility of simultaneous formation of the Tamm plasmon polariton at the photonic crystal/metallic nanocomposite interface and the localized state similar to the defect mode with the field intensity maximum inside the dielectric nanocomposite layer is demonstrated. Specific features of field localization at the Tamm plasmon polariton and defect mode frequencies are analyzed. Full article
(This article belongs to the Special Issue Nonlinear Dielectric Photonics and Metasurfaces)
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10 pages, 3804 KiB  
Article
Impedance-Matched, Double-Zero Optical Metamaterials Based on Weakly Resonant Metal Oxide Nanowires
by Diego R. Abujetas, Ramón Paniagua-Domínguez and José A. Sánchez-Gil
Photonics 2018, 5(2), 7; https://doi.org/10.3390/photonics5020007 - 28 Mar 2018
Viewed by 4630
Abstract
Artificial optical metamaterial with a zero index of refraction holds promise for many diverse phenomena and applications, which can be achieved with vacuum (or related) surface impedance and materials in the optical domain. Here, we propose simple metal-oxide nanorods as meta-atoms on the [...] Read more.
Artificial optical metamaterial with a zero index of refraction holds promise for many diverse phenomena and applications, which can be achieved with vacuum (or related) surface impedance and materials in the optical domain. Here, we propose simple metal-oxide nanorods as meta-atoms on the basis of an effective medium approach, based on their weak overlapping (electric/magnetic) resonances. We thus studied the optical properties of TiO 2 nanowire arrays with a high-filling fraction through their photonic band structure, which exhibits a double-degeneracy point without a band gap at the center of the Brillouin zone. Various configurations are considered that reveal their performance over a reasonable range of incident wave vectors as impedance-matched, double-zero, bulk (low-loss) metamaterials. Full article
(This article belongs to the Special Issue Nonlinear Dielectric Photonics and Metasurfaces)
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13 pages, 2943 KiB  
Article
Efficiency Limits of Solar Energy Harvesting via Internal Photoemission in Carbon Materials
by Svetlana V. Boriskina, Jiawei Zhou, Zhiwei Ding and Gang Chen
Photonics 2018, 5(1), 4; https://doi.org/10.3390/photonics5010004 - 24 Feb 2018
Cited by 4 | Viewed by 6018
Abstract
We describe strategies to estimate the upper limits of the efficiency of photon energy harvesting via hot electron extraction from gapless absorbers. Gapless materials such as noble metals can be used for harvesting the whole solar spectrum, including visible and near-infrared light. The [...] Read more.
We describe strategies to estimate the upper limits of the efficiency of photon energy harvesting via hot electron extraction from gapless absorbers. Gapless materials such as noble metals can be used for harvesting the whole solar spectrum, including visible and near-infrared light. The energy of photo-generated non-equilibrium or ‘hot’ charge carriers can be harvested before they thermalize with the crystal lattice via the process of their internal photo-emission (IPE) through the rectifying Schottky junction with a semiconductor. However, the low efficiency and the high cost of noble metals necessitates the search for cheaper abundant alternative materials, and we show here that carbon can serve as a promising IPE material candidate. We compare the upper limits of performance of IPE photon energy-harvesting platforms, which incorporate either gold or carbon as the photoactive material where hot electrons are generated. Through a combination of density functional theory, joint electron density of states calculations, and Schottky diode efficiency modeling, we show that the material electron band structure imposes a strict upper limit on the achievable efficiency of the IPE devices. Our calculations reveal that graphite is a good material candidate for the IPE absorber for harvesting visible and near-infrared photons. Graphite electron density of states yields a sizeable population of hot electrons with energies high enough to be collected across the potential barrier. We also discuss the mechanisms that prevent the IPE device efficiency from reaching the upper limits imposed by their material electron band structures. The proposed approach is general and allows for efficient pre-screening of materials for their potential use in IPE energy converters and photodetectors within application-specific spectral windows. Full article
(This article belongs to the Special Issue Nonlinear Dielectric Photonics and Metasurfaces)
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Review

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24 pages, 1100 KiB  
Review
Shaping Light in Backward-Wave Nonlinear Hyperbolic Metamaterials
by Alexander K. Popov, Sergey A. Myslivets, Vitaly V. Slabko, Victor A. Tkachenko and Thomas F. George
Photonics 2018, 5(2), 8; https://doi.org/10.3390/photonics5020008 - 18 Apr 2018
Cited by 5 | Viewed by 4424
Abstract
Backward electromagnetic waves are extraordinary waves with contra-directed phase velocity and energy flux. Unusual properties of the coherent nonlinear optical coupling of the phase-matched ordinary and backward electromagnetic waves with contra-directed energy fluxes are described that enable greatly-enhanced frequency and propagation direction conversion, [...] Read more.
Backward electromagnetic waves are extraordinary waves with contra-directed phase velocity and energy flux. Unusual properties of the coherent nonlinear optical coupling of the phase-matched ordinary and backward electromagnetic waves with contra-directed energy fluxes are described that enable greatly-enhanced frequency and propagation direction conversion, parametrical amplification, as well as control of shape of the light pulses. Extraordinary transient processes that emerge in such metamaterials in pulsed regimes are described. The results of the numerical simulation of particular plasmonic metamaterials with hyperbolic dispersion are presented, which prove the possibility to match phases of such coupled guided ordinary and backward electromagnetic waves. Particular properties of the outlined processes in the proposed metamaterial are demonstrated through numerical simulations. Potential applications include ultra-miniature amplifiers, frequency changing reflectors, modulators, pulse shapers, and remotely actuated sensors. Full article
(This article belongs to the Special Issue Nonlinear Dielectric Photonics and Metasurfaces)
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