Resonant Optomechanical Tension and Crumpling of 2D Crystals,ACS Photonics

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Resonant Optomechanical Tension and Crumpling of 2D Crystals
ACS Photonics ( IF 6.5 ) Pub Date : 2020-08-12 , DOI: 10.1021/acsphotonics.0c00881
Ivan D. Avdeev ₁ , Alexander N. Poddubny ₁ , Alexander V. Poshakinskiy ₁

Affiliation

Recent years have seen a tremendous interest to atomically thin membranes such as graphene or monolayers of transition metal dichalcogenides. Owing to their light mass and strong optical resonances, such membranes have become a promising platform for nanoscale resonant optomechanics. However, the considerations of the light–membrane interaction have been mostly restricted to the well-known light pressure and heating. Here, we theoretically predict a fundamentally different optomechanical effect that is specific for membranes. Namely, we demonstrate that illumination of optically resonant membranes by a plane electromagnetic wave directly affects their mechanical tension. The induced optomechanical tension is anisotropic and, depending on the spectral detuning from the resonance, can be both positive and negative. In the latter case, it can overcome the bending rigidity of the membrane leading to transition to the crumpled phase. Our fundamental findings apply from manipulation of biological cell membranes to controllable furling and unfurling of solar sails.

中文翻译：

二维晶体的共振光机械张力和压皱

近年来，人们对原子薄的薄膜（例如石墨烯或过渡金属二卤化物单层）表现出极大的兴趣。由于其轻的质量和强的光学共振，这种膜已成为纳米共振光学机械的有前途的平台。但是，光-膜相互作用的考虑主要限于众所周知的光压和加热。在这里，我们从理论上预测膜特有的根本不同的光机械效应。即，我们证明了平面电磁波对光学共振膜的照射直接影响其机械张力。所产生的光机械张力是各向异性的，并且取决于共振引起的光谱失谐，其可以是正的，也可以是负的。在后一种情况下，它可以克服膜的弯曲刚性，从而导致过渡到皱缩相。我们的基本发现适用于从生物细胞膜的操纵到太阳帆的可控收起和收起。

更新日期：2020-09-16

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