Optical addressing of nanomechanical metamaterials with subwavelength resolution
Abstract
Metamaterials that offer “on-demand” control of individual metamolecules are termed “randomly accessible metamaterials.” They can be useful for manipulation of the wavefront of electromagnetic radiation, for tailoring of the nearfield, and ultimately for multichannel data processing. Here, we demonstrate how light can be used to actuate individual metamaterial elements on demand. Selectivity is achieved by constructing the metamaterial from nanomechanical elements that are designed to have slightly different mechanical resonance frequencies. Actuation is controlled by modulation of the optical control signal at the mechanical resonance frequencies of targeted elements, providing an all-optical route to randomly accessible metamaterials with spatial resolution beyond the diffraction limit.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 20, 2018
- Source ID
- 10.1063/1.5036966
Entities
People
- Eric Plum
- Jun-Yu Ou
- Nikolay I. Zheludev
Organizations
- Engineering and Physical Sciences Research Council
- Ministry of Education
- Nanyang Technological University
- Office of Naval Research
- University of Southampton