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Full-Text Articles in Nanoscience and Nanotechnology

Uncovering New Thermal And Mechanical Behavior At The Nanoscale Using Coherent Extreme Ultraviolet Light, Kathleen Marie Hoogeboom-Pot Jan 2015

Uncovering New Thermal And Mechanical Behavior At The Nanoscale Using Coherent Extreme Ultraviolet Light, Kathleen Marie Hoogeboom-Pot

Physics Graduate Theses & Dissertations

Tremendous recent progress in nanofabrication capabilities has made high-quality single-atomic layers and nanostructures with dimensions well below 50 nm commonplace, enabling unprecedented access to materials at the nanoscale. However, tools and techniques capable of characterizing the properties and function of nanosystems are still quite limited, leaving much of the fundamental physics that dominates material behavior in the deep nano-regime still unknown. Further understanding gained by studying nanoscale materials is critical both to fundamental science and to continued technological development. This thesis applies coherent extreme ultraviolet (EUV) light from tabletop high harmonic generation to study nanoscale systems on their intrinsic length ...


Novel Concepts In Near-Field Optics: From Magnetic Near-Field To Optical Forces, Honghua Yang Jan 2015

Novel Concepts In Near-Field Optics: From Magnetic Near-Field To Optical Forces, Honghua Yang

Physics Graduate Theses & Dissertations

Driven by the progress in nanotechnology, imaging and spectroscopy tools with nanometer spatial resolution are needed for in situ material characterizations. Near-field optics provides a unique way to selectively excite and detect elementary electronic and vibrational interactions at the nanometer scale, through interactions of light with matter in the near-field region. This dissertation discusses the development and applications of near-field optical imaging techniques, including plasmonic material characterization, optical spectral nano-imaging and magnetic field detection using scattering-type scanning near-field optical microscopy (s-SNOM), and exploring new modalities of optical spectroscopy based on optical gradient force detection.

Firstly, the optical dielectric functions ...