Fig. 1.
(Color online) (a) The schematic geometry of the structure. (b) The z-cut section of the structure. The length of the triangle is L.
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Zuyin Zhang, Guofeng Song. High enhancement factor of Au nano triangular prism structure for surface enhanced coherent anti-Stokes Raman scattering[J]. Journal of Semiconductors, 2017, 38(2): 022001. doi: 10.1088/1674-4926/38/2/022001
Z Y Zhang, G F Song. High enhancement factor of Au nano triangular prism structure for surface enhanced coherent anti-Stokes Raman scattering[J]. J. Semicond., 2017, 38(2): 022001. doi: 10.1088/1674-4926/38/2/022001.
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High enhancement factor of Au nano triangular prism structure for surface enhanced coherent anti-Stokes Raman scattering
doi: 10.1088/1674-4926/38/2/022001
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Abstract
Coherent anti-Stokes Raman scattering spectroscopy(CARS) is a well-known detecting tool in biosensing and nonlinear spectroscopy. It can provide a non-invasive alternative without the need for exogenous labels, while the enhancement factor for surface plasmon resonances(SPR) are extensively used to increase the local field close to the oscillators and which can obtain high enhancement. In this work, we investigate the enhancement factor of our structure for surface-enhanced coherent anti-Stokes Raman scattering. The absorption spectrum of the structure has been studied, a wide range of absorption has been realized. The enhancement can be as high as 1016 over standard CARS. Our design is very useful for improving the enhancement factor of surface-enhanced coherent anti-Stokes Raman scattering. -
References
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