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Article
Plasmon Hybridization of Au Hollow Nanocone Array for SERS Sensing
Surface-enhanced Raman scattering (SERS) spectroscopy plays a vital role in highly sensitive fingerprint detections and non-invasive point-of-care diagnostics. However, elaborate fabrication of a compact nanos...
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Article
A Photonic Crystal Fiber-Based Biosensor with Quasi-D-shaped Layout and ITO-Graphene Combination
A quasi-D-shaped photonic crystal fiber (PCF) biosensor in the near-infrared region (NIR) is proposed for the purpose of detecting the analytes/liquids of different refractive indices (RIs) ranging from 1.21 t...
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Article
Transcriptome sequencing revealed the mechanism of promoting floret opening by exogenous methyl jasmonate in sorghum
Flowering time is a critical trait reflecting the adaptation of plants to their environments. Our initial research has shown that exogenous methyl jasmonate (MeJA) significantly promoted the floret opening of ...
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Article
Micro-cones Array-Based Plasmonic Metasurface for Sensitive and Enhanced Raman Detection
We report a micro-cone unit-based plasmonic metasurface for surface-enhanced Raman spectroscopy. The unit consists of Au cone-shaped needle, Au thin film, and SiO2 substrate. To verify performance of the structur...
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Article
Three-Dimensional Aberration Analyses of Metasurface Flat Lenses
Three-dimensional analyses of optical aberrations of metasurface flat lenses are presented via ray tracing. The ray tracing is performed on the basis of anomalous refraction/reflection law specialized for meta...
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Article
A Simplified and Cost-Effective Optical Absorber and Corresponding Photo-Thermal Effect
A simplified and cost-effective optical absorber is designed by means of optimization on the basis of finite domain and time difference (FDTD) algorithm. It is suitable for fabrication and mass production in f...
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Article
Theoretical T Circuit Modeling of Graphene-Based Metamaterial Broadband Absorber
We demonstrate a broadband light absorber with its absorption being able to reach as high as 90 % and above ranging from the ultraviolet to the visible regimes. A theoretical model is given for the purpose of ...
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Article
Open AccessMonitoring tetracycline through a solid-state nanopore sensor
Antibiotics as emerging environmental contaminants, are widely used in both human and veterinary medicines. A solid-state nanopore sensing method is reported in this article to detect Tetracycline, which is ba...
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Article
Germanium nanopyramid arrays showing near-100% absorption in the visible regime
Solar energy is regarded as one of the most plentiful sources of renewable energy. An extraordinary light-harvesting property of a germanium periodic nanopyramid array is reported in this Letter. Both our theo...
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Article
Multiple-Beam Surface Plasmon Holographic Nanolithography
Multiple-beam surface plasmon holographic nanolithography based on a hemispherical prism coupling configuration is numerically studied in this paper. The proposed configuration is systematically analyzed and o...
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Article
Negative Refraction and Focusing of Photonic Crystals with Graded Negative Index in Visible Regime
In this paper, we designed a hexagonal lattice photonic crystal (PC) which presents negative refraction behavior in the broadband visible region. By varying the PC parameters, a graded index PC was obtained fo...
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Article
Study of Metallic Nanowires with Arbitrary Cross-Sectional Shapes for Negative Refraction in Visible Regime
Considering the nanofabrication errors, the real fabricated metallic nanowires may have irregular cross-sectional shapes. In this work, the metallic nanowires array with arbitrary cross-sectional shapes for ne...
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Article
Study of the Plasmon Talbot Effect of Metallic Nanolenses Induced by Linearly Polarized Illumination
The plasmon Talbot effect of metallic nanolenses was studied theoretically and experimentally for the linearly polarized incident beam case. To demonstrate this self-imaging-based focusing property of the meta...
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Article
Plasmonic Nanolithography: A Review
Surface plasmon polaritons (SPPs) has attracted great attention in the last decade and recently it has been successfully applied to nanolithography due to its ability of beyond diffraction limit. This article ...
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Article
Negative Refraction and Focusing Properties of Silver Nanowires Array with Different Cross-Sections
A three-dimensional silver metallic nanowires array which can realize negative refraction and image focusing in the visible frequency is presented. Homogeneous effective medium theory is used to investigate th...
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Article
Experimental Study of Metallic Elliptical Nano-Pinhole Structure-Based Plasmonic Lenses
An elliptical nano-pinhole structure-based plasmonic lens was designed and investigated experimentally by means of focused ion beam nanofabrication, atomic force microscope imaging, and scanning near-field opt...
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Article
Experimental Study of Indirect Phase Tuning-Based Plasmonic Structures for Finely Focusing
Three types of indirect phase tuning-based plasmonic structures with subwavelength circular grooves/slits and/or central apertures corrugated on Au film supported by glass substrate: depth modulation, width mo...
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Article
Near-Field Optical Experimental Investigation of Gold Nanohole Array
Gold nanohole arrays are fabricated with focused ion beam irradiating gold thin film supported on quartz substrate. The topography of the nanohole arrays is characterized using an atomic force microscope, and ...
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Article
Computational Study of Influence of Structuring of Plasmonic Nanolens on Superfocusing
The focusing effect of the plasmonic nanolens is studied systematically. The influence of different construction parameters including the size of the central hole, the ring width of the surrounding concentric ...
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Article
Investigation of Resonance Modulation of a Single Rhombic Plasmonic Nanoparticle
Optical extinction resonant properties of the silver rhombic plasmonic nanoparticles in visible regime were investigated by means of finite difference time domain method algorithm-based computational numerical...
