An Adaptive Soft Plasmonic Nanosheet Resonator
Abstract
Current micro nanomechanical system are usually based on rigid crystalline semiconductors that normally have high quality factors but lack adaptive responses to variable frequencies, a capability ubiquitous for communications in the biological world, such as bat and whale calls. Here, we demonstrate a soft mechanical resonator based on a freestanding organic-inorganic hybrid plasmonic superlattice nanosheet, which can respond adaptively to either incident light intensity or wavelength. This is achieved because of strong plasmonic coupling in closely-packed nanocrystals which can efficiently concentrate and convert photons into heat. The heat causes the polymer matrix to expand, leading to a change in the nanomechanical properties of the plasmonic nanosheet. Notably, the adaptive frequency responses are also reversible and the responsive ranges are fine-tunable by adjusting the constituent nanocrystal building blocks. We believe that our plasmonic nanosheets may open a new route to design next-generation intelligent bio-mimicking opto-mechanical resonance systems.
Cite
@article{arxiv.1902.05663,
title = {An Adaptive Soft Plasmonic Nanosheet Resonator},
author = {Xinghua Wang and Tanju Yildirim and Kae Jye Si and Ankur Sharma and Yunzhou Xue and Qinghua Qin and Qiaoliang Bao and Wenlong Cheng and Yuerui Lu},
journal= {arXiv preprint arXiv:1902.05663},
year = {2019}
}