Surface plasmon strengthened nonlinearity in indium-tin-oxide coated Cu-doped potassium sodium barium strontium niobate crystals

Hua Zhao; Liang Li; Guangwei Hu; Jingwen Zhang

doi:10.1117/12.2187192

28 August 2015 Surface plasmon strengthened nonlinearity in indium-tin-oxide coated Cu-doped potassium sodium barium strontium niobate crystals

Hua Zhao, Liang Li, Guangwei Hu, Jingwen Zhang

Author Affiliations +

Proceedings Volume 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII; 95470P (2015) https://doi.org/10.1117/12.2187192
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

Abstract

Employing fast response, Cu-doped (K_0.5Na_0.5)0.2(Sr_0.75 Ba_0.25)0.9Nb₂O₆ (KNSBN) crystals in modifying ITO coating to support visible surface plasmon polaritons (SPPs) to strengthen nonlinearity in KNSBN, we found: (1) a 2 dimensional diffraction pattern was observed with only two writing beams; (2) The reflectivity on the very first surface was changed 2.3%, equivalent to 0.023 refractive index change; (3) 3.0% energy transferring to the reflection on the first surface was measured, resulting unambiguously from energy transferring in subwavelength scale. All these results are consist with our theoretical consideration based on phase grating mediation SPP excitation, which is promising in designing photonic devices.

Conference Presentation

Citation Download Citation

Hua Zhao, Liang Li, Guangwei Hu, and Jingwen Zhang "Surface plasmon strengthened nonlinearity in indium-tin-oxide coated Cu-doped potassium sodium barium strontium niobate crystals", Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 95470P (28 August 2015); https://doi.org/10.1117/12.2187192

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