The invention provides a branchy tree-shaped
plasmon waveguide composite nano-structure synthesis method and an optical manipulation method thereof. The branchy tree-shaped
plasmon waveguide compositenano-structure synthesis method includes a plurality of steps, and each step can be accurately controlled. Thickness of a
trunk of a tree-shaped nano-structure and thickness of a
branch-shaped nano-structure growing on the
trunk can be accurately controlled.
quantum dots with / without housings are overlaid on the surface of the tree-shaped nano-structure to form a
quantum dot composite tree-shapednano-structure, and the
quantum dots without housings can be applied to chemocatalysis, environment monitoring, biosensing and other fields. When incidence of light occurs from one end of a nano wire, through the nano wire and the
branch-shaped structure, the quantum dots with housings are excited to emit light, so that the branchy tree-shaped
plasmon waveguide composite nano-structure synthesismethod and the optical manipulation method thereof can be applied to
remote sensing Raman, novel lasers and other fields. Besides, through optical manipulation, the intensity and the polarization of the incident light can be changed, and then the quantum dots in a specific region can be controlled to emit light, so that the
crosstalk effect, between scattering centers, interfering generation of
diffraction effect, can be eliminated. Therefore, the branchy tree-shaped
plasmon waveguide composite nano-structure synthesis method and the optical manipulation method thereof can be used for
high resolution detection of sub-
wavelength.