Transformational Optics
Abstract
The Transformation Optics Multidisciplinary University Research Imitative team has continued to develop the theory, modeling and application of Transformation Optical (TO) media, as well as investigating related fabrication and materials issues necessary for implementing metamaterial based TO designs at infrared and visible wavelengths. Device concepts include ultra-wide field-of-view lenses; near-field magnifiers (or hyper-lenses); integrated photonic TO devices; plasmonic TO structures; and tapered waveguide analog TO devices. Of particular relevance is the development of quasi-conformal (QC) optimization techniques that lead to more realizable TO designs, appropriate for the shorter wavelengths of interest. The QCTO approach has been demonstrated in the design of a flattened Luneburg lens, which can be realized using dielectric-only media, and has also been applied in the optimization of a multi-functional Janus element that integrates simultaneous beam shifting and focusing operations within the same chip-scale footprint. Material and fabrication efforts have included the integration of gain media into metamaterial elements to offset absorptive losses, as well as a number of lithographic patterning techniques to achieve planar and bulk gradient and TO media operational at near- and mid-infrared wavelengths.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 19, 2016
- Accession Number
- AD1051051
Entities
People
- David R. Smith
Organizations
- Duke University
- Purdue University
- University of Utah