Deposited ultra-thin titanium nitride nanorod array as a plasmonic near-perfect light absorber

AbstractThe transmittance, reflectance, and extinctance that correspond to the localized plasmonic resonance within TiN nanorods were investigated. The obliquely deposited TiN nanorod array shows polarization-independent admittance matching to air. Unlike noble metal nanorods, the near-field localized longitudinal and transverse plasmonic resonance of TiN nanorod arrays present polarization-dependent light extinction in the far field. The longitudinal plasmonic mode presents stronger extinction than transverse plasmonic mode. In order to have high efficient light absorption, an ultra-thin two-layered TiN nanorod array was fabricated with orthogonal deposition planes for upper layer and bottom layer to absorb different polarized light energy. The measured spectrum shows broadband and wide-angle light extinction.

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Extinction Properties of Obliquely Deposited TiN Nanorod Arrays

Coatings ◽

10.3390/coatings8120465 ◽

2018 ◽

Vol 8 (12) ◽

pp. 465 ◽

Cited By ~ 4

Author(s):

Yi-Jun Jen ◽

Wei-Chien Wang ◽

Kai-Lun Wu ◽

Meng-Jie Lin

Keyword(s):

Near Field ◽

Polarized Light ◽

Glancing Angle Deposition ◽

Light Extinction ◽

Angle Of Incidence ◽

Nanorod Arrays ◽

Vapor Flux ◽

Glancing Angle ◽

Angle Deposition ◽

Sputtering System

Plasmonic titanium nitride (TiN) nanorod arrays (NRA) were fabricated by glancing angle deposition in a DC magnetron reactive sputtering system. The morphology of the TiN NRA was varied by collimating the vapor flux. The transmittance, reflectance, and extinctance of slanted TiN nanorods with different lengths as functions of wavelength and angle of incidence were measured and analyzed. The extinction peaks in the spectra reveal the transverse and longitudinal plasmonic modes of TiN NRA upon excitation by s-polarized and p-polarized light, respectively. The near-field simulation was performed to elucidate localized field enhancements that correspond to high extinction. The extension of the high extinction band with an increasing length of the nanorods results in broadband and wide-angle light extinction for a TiN NRA with a thickness greater than 426 nm.

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Facile Synthesis of a Porous ZnO Nanorod Array with Enhanced Photocatalysis for Photoelectrochemical Water Splitting Application

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2020.17411 ◽

2020 ◽

Vol 20 (6) ◽

pp. 3512-3518

Author(s):

Saleh Khan ◽

Xiao-He Liu ◽

Xi Jiang ◽

Qing-Yun Chen

Keyword(s):

Annealing Temperature ◽

Zno Nanorods ◽

Nanorod Array ◽

Photocurrent Density ◽

Zno Nanorod ◽

Nanorod Arrays ◽

Zno Nanorod Arrays ◽

Irradiation Intensity ◽

Heat Treated ◽

Positive Effect

Highly efficient and effective porous ZnO nanorod arrays were fabricated by annealing ZnO nanorod arrays grown on a substrate using a simple hydrothermal method. The annealing had a positive effect on the nanorod morphology, structure and optical properties. The porosity was closely related to the annealing temperature. After heating at 450 °C, pores appeared on the nanorods. It was demonstrated that the porosity could be exploited to improve the visible light absorption of ZnO and reduce the bandgap from 3.11 eV to 2.99 eV. A combination of improved charge separation and transport of the heat-treated ZnO thus led to an increase in the photoelectrochemical properties. At an irradiation intensity of 100 mW/cm−2, the photocurrent density of the porous nanorod array was approximately 1.3 mA cm−2 at 1.2 V versus Ag/AgCl, which was five times higher than that of the ZnO nanorods. These results revealed the synthesis of promising porous ZnO nanorods for photoelectrochemical applications.

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Polarization Controllable Device for Simultaneous Generation of Surface Plasmon Polariton Bessel-Like Beams and Bottle Beams

Nanomaterials ◽

10.3390/nano8120975 ◽

2018 ◽

Vol 8 (12) ◽

pp. 975 ◽

Cited By ~ 4

Author(s):

Peizhen Qiu ◽

Taiguo Lv ◽

Yupei Zhang ◽

Binbin Yu ◽

Jiqing Lian ◽

...

Keyword(s):

Surface Plasmon ◽

Surface Plasmon Polariton ◽

Near Field ◽

Polarized Light ◽

Simultaneous Generation ◽

Circularly Polarized Light ◽

Circularly Polarized ◽

Spatially Distributed ◽

Potential Applications ◽

Plasmon Polariton

Realizing multiple beam shaping functionalities in a single plasmonic device is crucial for photonic integration. Both plasmonic Bessel-like beams and bottle beams have potential applications in nanophotonics, particularly in plasmonic based circuits, near field optical trapping, and micro manipulation. Thus, it is very interesting to find new approaches for simultaneous generation of surface plasmon polariton Bessel-like beams and bottle beams in a single photonic device. Two types of polarization-dependent devices, which consist of arrays of spatially distributed sub-wavelength rectangular slits, are designed. The array of slits are specially arranged to construct an X-shaped or an IXI-shaped array, namely X-shaped device and IXI-shaped devices, respectively. Under illumination of circularly polarized light, plasmonic zero-order and first-order Bessel-like beams can be simultaneously generated on both sides of X-shaped devices. Plasmonic Bessel-like beam and bottle beam can be simultaneously generated on both sides of IXI-shaped devices. By changing the handedness of circularly polarized light, for both X-shaped and IXI-shaped devices, the positions of the generated plasmonic beams on either side of device can be dynamically interchanged.

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Near-field optical imaging of polarization-dependent plasmonic resonance in metal nanoparticle pairs

10.1117/12.841591 ◽

2010 ◽

Author(s):

Hsing-Ying Lin ◽

Chen-Han Huang ◽

Chih-Han Chang ◽

Yun-Chiang Lan ◽

Hsiang-Chen Chui

Keyword(s):

Optical Imaging ◽

Near Field ◽

Metal Nanoparticle ◽

Plasmonic Resonance

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Plasmonic interference modulation for broadband nanofocusing

Nanophotonics ◽

10.1515/nanoph-2021-0405 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Shaobo Li ◽

Shuming Yang ◽

Fei Wang ◽

Qiang Liu ◽

Biyao Cheng ◽

...

Keyword(s):

Near Field ◽

Three Dimensional ◽

Field Enhancement ◽

Incident Beam ◽

Plasmonic Mode ◽

Resonant Structures ◽

Interference Modulation ◽

Near Field Imaging ◽

Linearly Polarized ◽

Radially Polarized

Abstract Metallic plasmonic probes have been successfully applied in near-field imaging, nanolithography, and Raman enhanced spectroscopy because of their ability to squeeze light into nanoscale and provide significant electric field enhancement. Most of these probes rely on nanometric alignment of incident beam and resonant structures with limited spectral bandwidth. This paper proposes and experimentally demonstrates an asymmetric fiber tip for broadband interference nanofocusing within its full optical wavelengths (500–800 nm) at the nanotip with 10 nm apex. The asymmetric geometry consisting of two semicircular slits rotates plasmonic polarization and converts the linearly polarized plasmonic mode to the radially polarized plasmonic mode when the linearly polarized beam couples to the optical fiber. The three-dimensional plasmonic modulation induces circumference interference and nanofocus of surface plasmons, which is significantly different from the nanofocusing through plasmon propagation and plasmon evolution. The plasmonic interference modulation provides fundamental insights into the plasmon engineering and has important applications in plasmon nanophotonic technologies.

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Tunable broadband wavelength-selective enhancement of responsivity in ordered Au-nanorod array-modified PbS photodetectors

Journal of Materials Chemistry C ◽

10.1039/c7tc04884j ◽

2018 ◽

Vol 6 (7) ◽

pp. 1767-1773 ◽

Cited By ~ 11

Author(s):

Bing He Xie ◽

Guang Tao Fei ◽

Shao Hui Xu ◽

Xu Dong Gao ◽

Jun Xi Zhang ◽

...

Keyword(s):

Nanorod Array ◽

Infrared Region ◽

Nanorod Arrays ◽

Selective Enhancement ◽

High Wavelength

A PbS-based photodetector integrated with ordered Au-nanorod arrays exhibited high wavelength-selective enhancement in the visible and infrared region.

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SERS polarization-dependent effects for an ordered 3D plasmonic tilted silver nanorod array

Nanoscale ◽

10.1039/c8nr01198b ◽

2018 ◽

Vol 10 (17) ◽

pp. 8106-8114 ◽

Cited By ~ 18

Author(s):

Renxian Gao ◽

Yongjun Zhang ◽

Fan Zhang ◽

Shuang Guo ◽

Yaxin Wang ◽

...

Keyword(s):

Numerical Simulation ◽

Nanorod Array ◽

Polarization Dependence ◽

Nanorod Arrays ◽

Simulation Data ◽

Hexagonal Close Packed

Hexagonal close-packed tilted Ag nanorod arrays that exhibit excellent uniformity and reproducibility were prepared. The polarization dependence of SERS of nanorod array is fundamentally explained by integrating the experimental and theoretical numerical simulation data.

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Near-field image transfer through a plasmonic nanorod-array

Photonic Metamaterials: From Random to Periodic ◽

10.1364/meta.2006.tua5 ◽

2006 ◽

Author(s):

Jun-ichi Kato ◽

Atsushi Ono ◽

Satoshi Kawata

Keyword(s):

Near Field ◽

Nanorod Array ◽

Image Transfer

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TiO2/graphene/NiFe-layered double hydroxide nanorod array photoanodes for efficient photoelectrochemical water splitting

Energy & Environmental Science ◽

10.1039/c6ee01092j ◽

2016 ◽

Vol 9 (8) ◽

pp. 2633-2643 ◽

Cited By ~ 250

Author(s):

Fanyu Ning ◽

Mingfei Shao ◽

Simin Xu ◽

Yi Fu ◽

Ruikang Zhang ◽

...

Keyword(s):

Water Splitting ◽

Layered Double Hydroxide ◽

Water Oxidation ◽

Charge Separation ◽

Nanorod Array ◽

Photoelectrochemical Water Splitting ◽

Nanorod Arrays ◽

Highly Efficient ◽

Oxidation Efficiency ◽

Double Hydroxide

TiO2/graphene/NiFe-layered double hydroxide nanorod arrays were fabricated as highly efficient photoanodes for photoelectrochemical water splitting with simultaneously enhanced charge separation and water oxidation efficiency.

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