Title:
Optical Metamaterials: From Linear Responses to Nonlinear Interactions and Beyond
Optical Metamaterials: From Linear Responses to Nonlinear Interactions and Beyond
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Author(s)
Cai, Wenshan
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Abstract
Metamaterials
are commonly viewed as artificially-structured media capable of realizing
arbitrary effective parameters, in which metals and dielectrics are
delicately combined to facilitate the index contrast and plasmonic response
required for a particular purpose. We aim to drive beyond this limited vision
and explore the use of optical metamaterials as a generalizable platform for
optoelectronic information technology: Metals will provide tailored plasmonic
behavior as before, but will serve double duty by providing electrical
functions including voltage input, carrier injection/extraction, and heat
sinking, and dielectrics will consist of functional elements such as Kerr
materials, electrooptic polymers, and p-n junctions. In this talk I will
discuss our preliminary results on several topics in this category, including
the electrically induced harmonic generation and optical rectification of
light in a perfect metamaterial absorber, the nonlinear spectroscopy and
imaging from a chiral metamaterial, and the backward phase-matching in an
optical metamaterial where the fundamental and frequency-doubled waves
possess opposite indices of refraction.
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Date Issued
2014-10-06
Extent
56:17 minutes
Resource Type
Moving Image
Resource Subtype
Lecture