Hierarchical Nanoscale Metamaterials
Abstract
Metamaterials are artificially structured materials whose properties derive from structure insteadof function of their constituent" units and exhibit properties not usually observed in nature, such asnegative refraction and electromagnetic cloaking for optical m""etamaterials and negative Poisson~sratios for mechanical metamaterials. However, conventional metamaterials are limited becausethe""y are composed of the same building units (same shape and material) and with the same spacingamong neighbors. Multi-scale, multi-ma"terial nanomaterials~proposed hierarchical nanoscalemetamaterials~offer advantages over traditional metamaterials since their collective propertiescan be manipulated by the interplay of short-range and long-range interactions as well as functionof the building" units. This proposal aims to design materials with multiple length scales starting atthe nanoscale, and combined with modeling, re""alize entirely new classes of surface metamaterialswith exceptional optical, electronic, and quantum properties. This proposal is o""rganized into fourmain objectives, including: (1) the development of multi-scale and multi-material fabrication toolsthat can achi"eve tunable periodicity and controlled disorder; (2) the design of hierarchical opticalmetasurfaces by the multi-scale fabrication of periodic ordered nanoparticle arrays; (3) the creationof monolithic polymer and 2D electronic metamaterials by controlling disorder in 3D over multiplelength scales; and (4) the exploration of quantum atomic meta-lattices by assembling atoms onnanostructured potentials. Anticipated outcomes of multi-scale nanoscale metamaterials that showunprecedented phenomena include multi-color nano"scale lasing and achromatic focusing, straininducedand structure-tunable electronic modulation, and new states of quantum matter.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 03, 2017
- Source ID
- N000141713023
Entities
People
- Teri W. Odom
Organizations
- Northwestern University
- Office of Naval Research
- United States Navy