Y. Abate (US)
Author Of 2 Presentations
NPNMAP - Novel Phenomena and New Materials for Advanced Photonics
WE4.4 - PROBING THE INFLUENCE OF DIELECTRIC ENVIRONMENT UPON VOLUME-CONFINED HYPERBOLIC POLARITONS
Presentation Type
Invited Submission
Authors
Date
08/21/2019
Time
03:00 PM - 05:00 PM
Room
Emerald E
Duration
15 Minutes
Lecture Time
04:15 PM - 04:30 PM
Abstract
Abstract
We employ nano-scale imaging and spectroscopy techniques to elucidate polariton characteristics as a function of the complex refractive index of the substrate. Although higher-order polariton modes exhibit wavelengths weakly sensitive to the environment, the principal mode strongly depends on the substrate dielectric constant
NPNMAP - Novel Phenomena and New Materials for Advanced Photonics
WE4.5 - NANOSCALE IMAGING AND SPECTROSCOPY OF CHARGE CARRIER DISTRIBUTION IN DOPED SILICON NANOWIRES BY THZ NANOSCOPY
Presentation Type
Invited Submission
Authors
Date
08/21/2019
Time
03:00 PM - 05:00 PM
Room
Emerald E
Duration
15 Minutes
Lecture Time
04:30 PM - 04:45 PM
Abstract
Abstract
We report on nanoscale carrier distribution and spectroscopy of doped silicon nanowires using terahertz (THz) time-domain nano-spectroscopy technique. We demonstrate the capability of THz-nanoscopy for probing and quantification of the order of doping levels in a single nanowire containing heterogeneously doped sections.