7 research outputs found
Visualization1.avi
Phase reconstruction of an oscillating dielectric disc pendulum, recorded using off-axis holography at 290 GHz. Frames captured at 25 fps = Exp3.
!May contain flashing patterns
Supplementary document for Real-time millimeter wave holography with an arrayed detector - 6822102.pdf
Supplementary document for main articl
Visualization2.avi
Phase reconstruction of an oscillating dielectric disc pendulum, recorded using off-axis holography at 290 GHz. Frames captured at 43 fps = Exp2.
!May contain flashing patterns
Visualization3.avi
Phase reconstruction of an oscillating dielectric disc pendulum, recorded using off-axis holography at 290 GHz. Frames captured at 72 fps = Exp1.
!May contain flashing patterns
Visualization4.avi
Phase reconstruction of an oscillating dielectric disc pendulum, recorded using off-axis holography at 290 GHz. Frames captured at 103 fps = Exp0.
!May contain flashing patterns
Induced Chirality through Electromagnetic Coupling between Chiral Molecular Layers and Plasmonic Nanostructures
We report a new approach for creating chiral plasmonic
nanomaterials.
A previously unconsidered, far-field mechanism is utilized which enables
chirality to be conveyed from a surrounding chiral molecular material
to a plasmonic resonance of an achiral metallic nanostructure. Our
observations break a currently held preconception that optical properties
of plasmonic particles can most effectively be manipulated by molecular
materials through near-field effects. We show that far-field electromagnetic
coupling between a localized plasmon of a nonchiral nanostructure
and a surrounding chiral molecular layer can induce plasmonic chirality
much more effectively (by a factor of 10<sup>3</sup>) than previously
reported near-field phenomena. We gain insight into the mechanism
by comparing our experimental results to a simple electromagnetic
model which incorporates a plasmonic object coupled with a chiral
molecular medium. Our work offers a new direction for the creation
of hybrid molecular plasmonic nanomaterials that display significant
chiroptical properties in the visible spectral region