Nonlinear Optical Absorption in the AgO<sub>x</sub>-Type Super-Resolution Near-Field Structure

Ho, Fu Han; Wei, Lin; Chang, Hsun Hao; Lin, Yu Hsaun; Liu, Wei Chih; Tsai, Din Ping

doi:10.1143/jjap.40.4101

Cited by 25 publications

(13 citation statements)

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“…The enhanced local field would in turn boost the generation of electrons and holes by a roughly linear relationship. The local enhancement has been extensively studied for Raman spectroscopy [129,130], sensors [123], plasmonic devices [124][125][126] and recently plasmonic metamaterials [73,74,[131][132][133][134][135][136][137][138][139][140][141][142][143].…”

Section: Enhanced Local Electric Field An Immediate Effectmentioning

confidence: 99%

Plasmonic photocatalysis

et al. 2013

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Plasmonic photocatalysis has recently facilitated the rapid progress in enhancing photocatalytic efficiency under visible light irradiation, increasing the prospect of using sunlight for environmental and energy applications such as wastewater treatment, water splitting and carbon dioxide reduction. Plasmonic photocatalysis makes use of noble metal nanoparticles dispersed into semiconductor photocatalysts and possesses two prominent features-a Schottky junction and localized surface plasmonic resonance (LSPR). The former is of benefit to charge separation and transfer whereas the latter contributes to the strong absorption of visible light and the excitation of active charge carriers. This article aims to provide a systematic study of the fundamental physical mechanisms of plasmonic photocatalysis and to rationalize many experimental observations. In particular, we show that LSPR could boost the generation of electrons and holes in semiconductor photocatalysts through two different effects-the LSPR sensitization effect and the LSPR-powered bandgap breaking effect. By classifying the plasmonic photocatalytic systems in terms of their contact form and irradiation state, we show that the enhancement effects on different properties of photocatalysis can be well-explained and systematized. Moreover, we identify popular material systems of plasmonic photocatalysis that have shown excellent performance and elucidate their key features in the context of our proposed mechanisms and classifications.

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Section: Enhanced Local Electric Field An Immediate Effectmentioning

confidence: 99%

Plasmonic photocatalysis

et al. 2013

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“…[1,2] Many approaches have been reported in the literature for the manipulation of surface plasmon wave using artificial nanostructures, such as plasmonic waveguide with the gold slots and V-shaped grooves, plasmonic lens with grating, SPPs focusing by the quarter-circle structure, and squeezing near-field light by metallic nanoparticles. [3][4][5][6][7][8] Also, several kinds of optical devices, such as a surface plasmon polariton mirror, beam splitter, and Mach-Zehnder interferometer, are developed in two-dimensional optics. [9][10] The Huygens-Fresnel principle for surface plasmon wave diffraction, interference, and focusing is developed as well.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional light manipulation by plasmonic nanostructure

et al. 2012

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Nanobump structures are fabricated on the gold thin film by femtosecond laser direct writing (fs-LDW) technique. The height and diameter of the gold nanobump are about 30nm, and 400 nm, respectively. The scattering light of surface plasmon wave radiated from a nanobump is observed using a total internal reflection microscopy. A quarter-circle structure composed of nanobumps is designed and produced to manipulate scattering light into specific pattern: The focusing and diverging of the quarter circular structure in three dimensional space are demonstrated. The polarization properties of focusing spot are also examined.

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“…Tellurium suboxide (TeO x ) [15,16], one of the chalcogenide phase change material [17,18], has been extensively investigated and used in both scientific and industrial applications, such as digital laser recording media [15,19], due to its excellent storage ability, high sensitivity and resolution, and low fabrication cost. The as-deposited TeO x film in vacuum actually consists of Te metal micrograins usually with diameters that are less than 2 nm and embedded in an amorphous TeO 2 matrix of a special granular structure [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%