An Adaptive Soft Plasmonic Nanosheet Resonator. Issue 4 (13th February 2019)

• Record Type: Journal Article
• Authors: Wang, Xinghua; Yildirim, Tanju; Si, Kae Jye; Sharma, Ankur; Xue, Yunzhou; Qin, Qinghua; Bao, Qiaoliang; Cheng, Wenlong; Lu, Yuerui
• Is Part Of: Laser & photonics reviews. Volume 13:Issue 4(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-02-13
• Subjects: light–matter interaction -- optically adaptive materials -- organic–inorganic materials -- plasmonic nanosheets -- tunable resonance frequency; Lasers -- Periodicals; Photonics -- Periodicals; Lasers -- Périodiques; Photonique -- Périodiques; 621.36
• DOI: 10.1002/lpor.201800302
• Languages: English
• ISSNs: 1863-8880

Abstract

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, a soft mechanical resonator based on a freestanding organic–inorganic hybrid plasmonic superlattice nanosheet is demonstrated, 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. It is believed that the plasmonic nanosheets may open a new route to design next‐generation intelligent bio‐mimicking opto‐mechanical resonance systems. Abstract : An adaptive soft plasmonic nanosheet resonator has been fabricated based on an organic–inorganic hybrid plasmonic superlattice nanosheet that responds adaptively to either incident light intensity or wavelength. The strong light matter interaction coupling of the resonator allows for wideband tunability using low power requirements for tuning.