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Filtering by: Creator Podolskiy, Viktor A. Remove constraint Creator: Podolskiy, Viktor A. Academic Affiliation Physics Remove constraint Academic Affiliation: Physics Decade 2010-2019 Remove constraint Decade: 2010-2019

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  • The optical properties of multi-scale plasmonic structures and their applications in optical characterization and imaging

    Creator:
    Kuhta, Nicholas Anthony
    Abstract:
    The optical response of metallic structures is dominated by the dynamics of their free electron plasma. Plasmonics, the area of optics specializing in the electromagnetic behavior of heterogeneous structures with metallic inclusions, is undergoing rapid development, fueled in part by recent progress in experimental fabrication techniques and novel theoretical approaches....
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Viktor A. Podolskiy The optical response of metallic structures is dominated by the

  • Computational nanooptics in hyperbolic metamaterials and plasmonic structures

    Creator:
    Thongrattanasiri, Sukosin
    Abstract:
    This dissertation concerns several problems in the fields of light interaction with nanostructured media, metamaterials, and plasmonics. We present a technique capable of extending operational bandwidth of hyperbolic metamaterials based on interleaved highly-doped InGaAs and undoped AlInAs multilayer stacks. The experimental results confirm theoretical predictions, exhibiting broadband negative refraction response...
    Resource Type:
    Dissertation
    Full Text:
    : ____________________________________________________________ Viktor A. Podolskiy

  • Terahertz transmission ellipsometry of vertically aligned multi-walled carbon nanotubes

    Creator:
    Paul, M. J., Kuhta, N. A., Tomaino, J. L., Jameson, A. D., Maizy, L. P., Sharf, T., Rupesinghe, N. L., Teo, K. B. K., Inampudi, S., Podolskiy, V. A., Minot, E. D., and Lee, Yun-Shik
    Abstract:
    We demonstrate time-resolved terahertz transmission ellipsometry of vertically aligned multi-walled carbon nanotubes. The angle-resolved transmission measurements reveal anisotropic characteristics of the terahertz electrodynamics in multi-walled carbon nanotubes. The anisotropy is, however, unexpectedly weak: the ratio of the tube-axis conductivity to the transverse conductivity, sigma[subscript z]/sigma[subscript xy] [similar or equal to]...
    Resource Type:
    Article
    Full Text:
    . Sharf,1 N. L. Rupesinghe,2 K. B. K. Teo,2 S. Inampudi,3 V. A. Podolskiy,3 E. D. Minot,1 and Yun-Shik

  • Terahertz transmission & spectroscopy of vertically grown multi-walled carbon nanotube forests

    Creator:
    Maizy, Louis
    Abstract:
    In this thesis, I present studies in the field of terahertz [THz] spectroscopy. It covers both the generation and detection of ultra-fast broadband THz pulses, as well as the transmission properties of vertically grown multi-walled carbon nanotube forests [MWCNTs]. We have found that these vertically grown MWCNTs respond strongly to...
    Resource Type:
    Masters Thesis
    Full Text:
    . Teo, S. Inampudi, V. A. Podolskiy, E. D. Minot, and Yun-Shik Lee. Tera- hertz transmission

  • Liquid-gated carbon nanotube transistor noise sources and sensitivity limits

    Creator:
    Sharf, Tal
    Abstract:
    Low-dimensional electronic materials offer a platform to observe biological processes with unprecedented spatial and temporal resolution. Carbon nanotubes (CNTs) are the closest physical analog to an ideal 1D system and can be scaled and integrated into multiplexed electronic circuitry. The molecular structure of a CNT is also biocompatible, making them...
    Resource Type:
    Dissertation
    Full Text:
    . Maizy, T. Sharf, N. L. Rupesinghe, K. B. K. Teo, S. Inampudi, V. A. Podolskiy, E. D. Minot, and Y. S

  • Nonlinear Terahertz Spectroscopy and imaging of Carbon Nanomaterials

    Creator:
    Lee, Byounghwak
    Abstract:
    This dissertation presents nonlinear terahertz (THz) properties of carbon nanomaterials investigated by time-resolved high-field THz spectroscopy. In order to determine THz characteristics of nanomaterials, we performed THz power spectrum measurement, THz raster imaging, THz time-domain spectroscopy (THz-TDS) and time-resolved pump-probe experiment on two different types of single layer graphene and...
    Resource Type:
    Dissertation
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    single layer graphene and a free standing multi-walled carbon nanotubes (MWCNTs), utilizing strong

  • Terahertz imaging and spectroscopy of carbon-based and semiconductor nanostructures

    Creator:
    Tomaino, Joseph L.
    Abstract:
    This thesis will cover work that I have completed relating to the field of terahertz (THz) science. My work has consisted of generating tunable, narrowband THz pulses in a table-top optical setup and using both narrow- and broadband THz pulses to study various material systems. Broadband THz pulses were used...
    Resource Type:
    Dissertation
    Full Text:
    . My work has consisted of generating tunable, narrowband THz pulses in a table-top optical setup and

  • Nonlinear terahertz spectroscopy of carbon nanomaterials and semiconductor nanostructures

    Creator:
    Paul, Michael Jason
    Abstract:
    This thesis will cover my work relating to the developing field of terahertz (THz) science and technology. It will present experimental and theoretical studies investigating the optical and electrical properties of various material systems using novel THz imaging and spectroscopy techniques. Due to its low photon energy, THz imaging and...
    Resource Type:
    Dissertation
    Full Text:
    that a thin plastic, polymethyl methacrylate (PMMA), layer in contact with single-layer graphene

  • High-Field Terahertz Spectroscopy of Nanoscale Materials

    Creator:
    Mousavian, Ali
    Abstract:
    This dissertation covers my work relating to the application of strong terahertz (THz) radiation to study the nonlinear properties of nano-scale material. It presents experimental and numerical studies on the optical and electronic properties of various material system including single-layer graphene, multi-walled carbon nanotubes (MWCNTs), nanoantenna-patterned gallium arsenide (GaAs) and...
    Resource Type:
    Dissertation
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    conductivity of a single-layer graphene is based on the Drude model, analyzing the THz transmission with the

  • Terahertz Imaging and Nonlinear Spectroscopy of Semiconductors using Plasmonic Devices

    Creator:
    Thompson, Zachary James
    Abstract:
    In this dissertation, a series of studies in the field of terahertz (THz) science are presented, specifically using nonlinear THz spectroscopy. We exploit huge field enhancement and subwavelength confinement in plasmonic structures. There are three distinct projects which will be discussed: nonlinear THz spectroscopy using plasmonic induced transparency (PIT), THz-triggered...
    Resource Type:
    Dissertation
    Full Text:
    , a series of studies in the field of terahertz (THz) science are pre- sented, specifically using