Article

Demonstration of integrated optics elements based on long-ranging surface plasmon polaritons.

Optics Express (impact factor: 3.59). 03/2005; 13(3):977-84. pp.977-84
Source: PubMed

ABSTRACT An experimental investigation of long-ranging surface plasmonpolariton waves guided along thin finite width Au structures embedded in a homogeneous background dielectric is reported. The operation of key passive integrated optics elements such as straight waveguides, s-bends, y-junctions and couplers is demonstrated at a free space optical wavelength of 1550 nm. The influence of some important design parameters on the performance of these elements is presented and discussed.

0 0
 · 
0 Bookmarks
 · 
21 Views
  • Source
    Article: Finite-Difference Time-Domain Study of Guided Modes in Nano-Plasmonic Waveguides
    Yan Zhao, Yang Hao
    [show abstract] [hide abstract]
    ABSTRACT: A conformal dispersive finite-difference time-domain (FDTD) method is developed for the study of one-dimensional (1-D) plasmonic waveguides formed by an array of periodic infinite-long silver cylinders at optical frequencies. The curved surfaces of circular and elliptical inclusions are modelled in orthogonal FDTD grid using effective permittivities (EPs) and the material frequency dispersion is taken into account using an auxiliary differential equation (ADE) method. The proposed FDTD method does not introduce numerical instability but it requires a fourth-order discretisation procedure. To the authors' knowledge, it is the first time that the modelling of curved structures using a conformal scheme is combined with the dispersive FDTD method. The dispersion diagrams obtained using EPs and staircase approximations are compared with those from the frequency domain embedding method. It is shown that the dispersion diagram can be modified by adding additional elements or changing geometry of inclusions. Numerical simulations of plasmonic waveguides formed by seven elements show that row(s) of silver nanoscale cylinders can guide the propagation of light due to the coupling of surface plasmons.
    IEEE Transactions on Antennas and Propagation 12/2007; · 2.15 Impact Factor
  • Article: Hybrid plasmonic waveguide for low-loss lightwave guiding.
    Jin Tae Kim, Jung Jin Ju, Suntak Park, Min-su Kim, Seung Koo Park, Sang-Yung Shin
    [show abstract] [hide abstract]
    ABSTRACT: A hybrid plasmonic waveguide structure is proposed and fabricated for low-loss lightwave guiding along a metal stripe core. By embedding Au stripe in dual slab waveguides with high refractive-index contrast, the field of the guided mode is confined more in the two dielectric core layers. Thus, the propagation loss is significantly reduced. The guided mode is like a combination of a fundamental long-range surface plasmon polariton strip mode and a dual symmetric dielectric slab mode. We fabricate 5 nm-thick Au stripe optical waveguides and measure the optical properties at a wavelength of 1.31 microm. The propagation loss is less than 1.0 dB/cm with the metal stripe width of 1-5 microm.
    Optics Express 02/2010; 18(3):2808-13. · 3.59 Impact Factor
  • Article: A waveguide-typed plasmonic mode converter.
    Hae-Ryeong Park, Jong-Moon Park, Min-Su Kim, Myung-Hyun Lee
    [show abstract] [hide abstract]
    ABSTRACT: Waveguide-typed plasmonic mode converters (WPMCs) at a wavelength of 1.55 μm are presented. The WPMC is composed of an insulator-metal-insulator waveguide (IMI-W), a 1st reversely tapered insulator-metal-insulator-metal-insulator waveguide (RT-IMIMI-W), an insulator-metal-insulator-metal-insulator waveguide (IMIMI-W), a 2nd RT-IMIMI-W with lateral silver mirrors (LSMs), and a metal-insulator-metal waveguide (MIM-W) in series. The mode sizes for the IMI-W, IMIMI-W, and MIM-W via the IMIMI-W with LSMs were not only calculated using a finite element method but were also experimentally measured. The input mode size of 10.3 μm × 10.3 μm from a polarization-maintaining single-mode fiber was squeezed to the mode size of ~2.9 μm × 2.9 μm in measurement by converting an s<sub>0</sub> mode to an Sa<sub>0</sub> mode via an Ss<sub>0</sub> mode. The WPMC may be potentially useful for bridging micro- to nano-plasmonic integrated circuits.
    Optics Express 08/2012; 20(17):18636-45. · 3.59 Impact Factor

Show more

Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

couplers
 
design parameters
 
elements
 
free space optical wavelength
 
homogeneous background dielectric
 
key passive
 
long-ranging surface plasmonpolariton waves
 
optics elements
 
thin finite width Au structures
 

Robert Charbonneau