نتایج جستجو برای: plasmonic peak
تعداد نتایج: 153945 فیلتر نتایج به سال:
Aligning liquid crystal (LC) molecules into spatially non-uniform orientation patterns is central to the functionalities of many emerging LC devices. Recently, we developed a new projection photopatterning technique by using plasmonic metamasks (PMMs), and demonstrated high-resolution and high-throughput patterning of molecular orientations into arbitrary patterns. Here we present comparisons b...
Plasmonic properties of metals such as gold is the main factor in the development of optical fiber sensors. Plasmonic property is created by exciting the surface plasmon polaritons by laser radiation. These properties are usually used in boosting and detection. The article examines and compares the collected information such as the length of the fiber optical sensor and the sensitivity of senso...
Metallic nanoparticles can exhibit very large optical extinction in the visible spectrum due to localized surface plasmon resonance. Spherical plasmonic nanoparticles have been the subject of numerous studies in recent years due to the fact that the scattering response of spheres can be analytically evaluated using Mie theory. However a major disadvantage of metallic spherical nanoparticles is ...
Controlling plasmon-exciton coupling through band gap engineering of plasmonic crystals is demonstrated in the Kretschmann configuration. When the flat metal surface is textured with a sinusoidal grating only in one direction, using laser interference lithography, it exhibits a plasmonic band gap because of the Bragg scattering of surface plasmon polaritons on the plasmonic crystals. The contra...
Cylindrical lens array (CLA) and plasmonic nano-grating structures were integrated with a large area interdigitated photoconductive antenna (PCA) for high-efficiency terahertz (THz) emitter applications. The peak-to-peak amplitude of THz radiation pulse from the CLA-integrated PCA was enhanced 5.5 times compared that conventional without CLA. highly localized electric field near nanoscale grati...
Pure plasmonic mode and hybrid plasmonic mode have been demonstrated. The cone-metal shelled structure is proposed. The two modes have been examined, pure plasmonic mode and hybrid plasmonic mode. At room temperature, the quality factor of the two modes has been compared and we found that the quality factor of hybrid plasmonic mode is 775 when the side angle of the cone structure ranged (60°-70...
We systematically investigated and quantified how gold (Au) metal nanoparticles (NPs) optical spectra change upon introduction into the biological tissue phantoms environment, in which AuNPs can agglomerate. Quantitative knowledge of plasmon resonance wavelength inside a phantom environment provide many in-vitro in-vivo plasmonic NPs-mediated applications. Because properties NPs are dependent o...
We report electronics regime (GHz) two-dimensional (2D) plasmonic circuits, which locally and nonresonantly interface with electronics, and thus offer to electronics the benefits of their ultrasubwavelength confinement, with up to 440,000-fold mode-area reduction. By shaping the geometry of 2D plasmonic media 80 nm beneath an unpatterned metallic gate, plasmons are routed freely into various ty...
We introduce far-infrared graphene plasmonic crystals. Periodic structural perturbation-in a proof-of-concept form of hexagonal lattice of apertures-of a continuous graphene medium alters delocalized plasmonic dynamics, creating plasmonic bands in a manner akin to photonic crystals. Fourier transform infrared spectroscopy demonstrates band formation, where far-infrared irradiation excites a uni...
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