Components for silicon plasmonic nanocircuits based on horizontal Cu-SiO2-Si-SiO2-Cu nanoplasmonic waveguides
ABSTRACT We report systematic results on the development of horizontal Cu-SiO₂-Si-SiO₂-Cu nanoplasmonic waveguide components operating at 1550-nm telecom wavelengths, including straight waveguides, sharp 90° bends, power splitters, and Mach-Zehnder interferometers (MZIs). Owing to the relatively low loss for propagating (~0.3 dB/µm) and for 90° sharply bending (~0.73 dB/turn), various ultracompact power splitters and MZIs are experimentally realized on a silicon-on-insulator (SOI) platform using standard CMOS technology. The demonstrated splitters exhibit a relatively low excess loss and the MZIs exhibit good performance such as high extinction ratio of ~18 dB and low normalized insertion loss of ~1.7 dB. The experimental results of these devices agree well with those predicted from numerical simulations with suitable Cu permittivity data.
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ABSTRACT: The scaling that has governed the continual increase in density, performance, and efficiency of electronic devices is rapidly reaching its inevitable limitations. In order to sustain the trend of ever-increasing bandwidth and performance, new technologies are being considered. Among the many competitors, nanophotonic technologies are especially poised to have an impact on the field of integrated devices. Here, we examine the available technologies, both traditional photonics and plasmonics, with emphasis on the latter. A summary of the previous advances in the field of nanophotonics (interconnects and modulators), along with more recent works investigating novel and CMOS-compatible materials, are presented with a graphical comparison of their performance. We suggest that nanophotonic technologies offer key advantages for future hybrid electrophotonic devices, where the movement toward new material platforms is a precursor to high-performance, industry-ready devices.Journal of the Optical Society of America B 01/2015; 32(1). DOI:10.1364/JOSAB.32.000121 · 1.81 Impact Factor
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ABSTRACT: In recent years, plasmonic nanoparticles are widely used in a wide range of applications including, biomedicine, spectroscopy, catalysis and energy harvesting. The properties of these particles are due to the interaction of these particles with electromagnetic irradiation that gives rise to the localized surface plasmons that are collective oscillations of their surface conduction electrons. This interaction influences its light absorption and scattering and thus, the particle color. Simulation of particle plasmons can be done by solving Maxwells equations for metallic nanoparticles embedded in a dielectric environment. One of the approaches to solve Maxwells equation is by Finite Difference Time Domain (FDTD) approach. Since FDTD is a time domain approach, the response for a wide range of frequencies can be obtained with a single simulation. In this paper we propose to review the application of FDTD in the simulation and modeling of various plasmonic nanoparticles.Materials Science Forum 03/2014; 781:33-44. DOI:10.4028/www.scientific.net/MSF.781.33
09/2014; 7(3):300-319. DOI:10.1007/s12200-014-0435-1