Epsilon-Near-Zero behavior from Plasmonic Dirac Point: Theory and realization using 2D materials Marios Mattheakis APS March Meeting, APS March Meeting, March 13, 2017 March 13, 2017 New Orleans, Louisiana New Orleans, Louisiana School of Engineering & Applied Physics (SEAS) Collaborators: C. Valagiannopoulos E. Kaxiras
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Epsilon-Near-Zero behavior from Plasmonic Dirac …Epsilon-Near-Zero behavior from Plasmonic Dirac Point: Theory and realization using 2D materials Marios Mattheakis APS March Meeting,
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Epsilon-Near-Zero behavior from Plasmonic Dirac Point: Theory and realization using 2D materials
Marios Mattheakis
APS March Meeting, APS March Meeting, March 13, 2017March 13, 2017
New Orleans, Louisiana New Orleans, Louisiana
School of Engineering &
Applied Physics (SEAS) Collaborators:
C. ValagiannopoulosE. Kaxiras
Periodic Structures
Plasmonic Crystal:Plasmonic Crystal: Periodic arrangement of dielectric/metal slabs
Optical Bands:Optical Bands: The propagation modes form bands in k-space
Normal Refraction Negative Refraction Epsilon-Near-Zero (ENZ)
Motivation
Can we design a structure with dynamically tunabledynamically tunable optical bands?
Can we have ENZ behaviorENZ behavior between normal and negative refraction regimes?
What the shape of ENZ bandshape of ENZ band will be?
Structure
2D metals2D metals are embedded periodically in an anisotropic dielectric host
Maxwell EquationsTransverse Magnetic (TM) monochromatic EM waves