Surface plasmon resonance manipulation through application of mechanically generated planar and linear strain

• DOI: 10.7567/1882-0786/ab3948
• Publication Date: 2019-08-07T22:45:10Z
• Authors: Yu-Tang Hu; Kuo-Feng Chiu; Andrei Vladimirov...; Markéta Florianová; Cheng-Yao Lo
• Keywords: 02 engineering and technology; 0210 nano-technology

This paper reports a method of manipulating surface plasmon resonance (SPR) by mechanically straining a substrate to induce reconfigurations of photonic nanostructures patterned above the substrate with handling simplicity, operation practicality, application variety, and design flexibility. Results indicate that the proposed method linearly expands nanostructures in the xy-plane, switching SPR and consequently changing the perceived color. Comprehensive structural design, numerical evaluation, device fabrication, experimental verification, and optical analysis were conducted in this study. In addition to the demonstrations, a tendency toward color purity improvement along with the enhancement of the completeness of linear strain distribution was observed.