Metal waveguide device and nano plasmonic integrated circuits and optical integrated circuit module using the same
AssigneeSungkyunkwan University Foundation for Corporate Collaboration
InventorsLee Myung Hyun, Park Hae Ryeong
Life of this patent
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Abstract
Disclosed is a metal waveguide device, and nano plasmonic integrated circuits and an optical integrated circuit module using the same. The nano plasmonic integrated circuit module includes an input coupling unit, an input focusing unit, a surface plasmon polariton waveguide for guiding surface plasmon polaritons, a signal sensing/processing unit, an output defocusing unit, and an output coupling unit for converting surface plasmon polariton signals into optical signals. The optical integrated circuit module includes the nano plasmonic integrated circuit module, thus realizing highly integrated photonic circuits having a micro structure, low power consumption and low price.
Claims24
A nano plasmonic integrated circuit module, comprising:
- an input coupling unit for focusing optical signals input through an optical waveguide, converting the focused optical signals into surface plasmon polariton signals, and outputting the surface plasmon polariton signals;
- an input focusing unit for focusing the output surface plasmon polariton signals to a nano size;
- a surface plasmon polariton waveguide for transmitting the focused surface plasmon polariton signals;
- a signal sensing/processing unit for sensing and processing the surface plasmon polariton signals transmitted through the surface plasmon polariton waveguide;
- an output defocusing unit for defocusing the surface plasmon polariton signals;
- and
- an output coupling unit for converting the defocused surface plasmon polariton signals into optical signals.
A nano plasmonic integrated circuit module, comprising:
- an input double metal taper for focusing optical signals input through an optical waveguide, converting the focused optical signals into surface plasmon polariton signals, and focusing the surface plasmon polariton signals to a size of from ones of μm to tens of μm or to a nano size;
- a surface plasmon polariton waveguide for transmitting the focused surface plasmon polariton signals;
- a signal sensing/processing unit for sensing and processing the surface plasmon polariton signals transmitted through the surface plasmon polariton waveguide;
- and
- an output double metal taper for defocusing the surface plasmon polariton signals, converting the defocused surface plasmon polariton signals into optical signals, and outputting the optical signals.
A double metal waveguide device, comprising:
- a first metal layer;
- an insulator layer formed on the first metal layer;
- and
- a second metal layer formed on the insulator layer and including a first end and a second end opposite the first end such that a width thereof gradually narrows from the first end toward the second end,
- wherein mode conversion between optical signals and surface plasmon polariton signals occurs at the first end of the second metal layer, and the surface plasmon polariton signals having a size of from ones of μm to sub-μm are focused into surface plasmon polariton signals having a size of from ones of μm to tens of μm or a nano size while traveling from the first end toward the second end.
Dependencies are inferred from the claim text.