Amplifying conversion efficiencies of SP-enhanced SHG from Ag surface with nonlinear optical polymer films

A. Sugita; K. Mochizuki; K. Kikuchi; A. Ono; W. Inami; Y. Kawata

doi:10.1117/12.2528662

9 September 2019 Amplifying conversion efficiencies of SP-enhanced SHG from Ag surface with nonlinear optical polymer films

A. Sugita, K. Mochizuki, K. Kikuchi, A. Ono, W. Inami, Y. Kawata

Author Affiliations +

Proceedings Volume 11082, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVII; 110820W (2019) https://doi.org/10.1117/12.2528662
Event: SPIE Nanoscience + Engineering, 2019, San Diego, California, United States

Abstract

We present second harmonic generations (SHG) of NLO polymers grown on Ag thin films at surface plasmon polariton (SPP) resonances. The Ag film itself exhibits surface nonlinear susceptibility and it is enhanced at the SP resonances. Our experimental results demonstrated that growing the NLO polymer layers on the Ag films was useful for further amplifying the conversion efficiencies of the SP-enhanced SHG. There was optimal polymer thickness for the SHG conversions, and approximately 40-fold maximum amplification was gained. The dependency of the SHG conversions on the polymer thickness was explained in terms of the bulk nonlinearities and the multiple reflections inside the polymer layer.

Conference Presentation

Citation Download Citation

A. Sugita, K. Mochizuki, K. Kikuchi, A. Ono, W. Inami, and Y. Kawata "Amplifying conversion efficiencies of SP-enhanced SHG from Ag surface with nonlinear optical polymer films", Proc. SPIE 11082, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVII, 110820W (9 September 2019); https://doi.org/10.1117/12.2528662

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