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Chiral meta-atoms rotated by light

Liu, Mingkai; Powell, David A.; Shadrivov, Ilya V.


We study the opto-mechanical properties of coupled chiral meta-atoms based on a pair of twisted split-ring resonators. By using a simple analytical model in conjunction with the Maxwell stress tensor, we capture insight into the mechanism and find that this structure can be used as a general prototype of subwavelength light-driven actuators over a wide range of frequencies. This coupled structure can provide a strong and tunable torque, and can support different opto-mechanical modes, including...[Show more]

CollectionsANU Research Publications
Date published: 2012-07-17
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.4737441


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