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Multiple surface plasmon resonances enhanced nonlinear optical microscopy
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李
孙
张
H
DOI：10.1515/nanoph-2018-0231.png)
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Abstract
En 中文
The nonlinear optical microscopies of coherent two-photon excited fluorescence and anti-Stokes Raman scattering are strongly enhanced by multiple surface plasmon resonances (MSPRs). The Au@Ag nanorods presented strong MSPRs peaks at 800 and 400 nm, and can enhance nonlinear optical microscopy at fundamental and double frequencies, respectively. A two-dimensional (2D) material of g-C3N4, is employed to study the plasmon-enhanced nonlinear optical microscopy by the femtosecond laser. The electric analysis reveals that the MSPRs of the Au@Ag nanorod can significantly enhance the signals of two-photon excited fluorescence and anti-Stokes Raman scattering by up to the orders of 10(4) and 10(16), respectively. The results demonstrate the great advantages of plasmonenhanced nonlinear optical microscopy for the optical analysis on 2D materials, thus providing a new adventure for increasing the optical resolutions of nonlinear optical microscopy.
Keywords:
TPEF
CARS
MSPRs
Au@Ag nanorods
surface plasmon
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