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Filtering by: Contributor Kerr, David Remove constraint Contributor: Kerr, David Advisor Lee, Yun Shik Remove constraint Advisor: Lee, Yun Shik Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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  • 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:
    cavity. The Mira achieves modelocking by use of a Kerr lens and an adjustable slit. A Kerr lens is a

  • The nonlinear optical properties of gallium arsenide pertaining to terahertz generation

    Creator:
    Hurlbut, Walter C.
    Abstract:
    Gallium arsenide shows excellent promise for terahertz generation using mid infrared. This is for two reasons. First, the indices of refraction for the terahertz (nTHz=3.61 at 1 THz) and mid infrared (nopt=3.431 at 2 μm) are close allowing a long interaction length. Second, the linear absorption is low at terahertz...
    Resource Type:
    Dissertation
    Full Text:
    interested in n2. This is also often referred to as the Kerr e¤ect. There are two types of this e¤ect. If

  • Generation and manipulation of THz waves

    Creator:
    Amer, Naaman
    Abstract:
    In this thesis I studied several THz components that can be used for potential THz technology. THz waves were generated in nonlinear medium via optical rectification of femtosecond optical pulses. Utilizing the phase matching condition between the optical and THz waves in a ZnTe crystal, single-cycle broad-band THz pulses were...
    Resource Type:
    Dissertation
    Full Text:
    optic effect. The Kerr “quadratic electro-optic effect” is neglected here. Substituting the right

  • Terahertz Induced Non-linear Electron Dynamics in Nanoantenna Coated Semiconductors at the Sub-picosecond Timescale

    Creator:
    Stickel, Andrew
    Abstract:
    This dissertation is an exploration of the material response to Terahertz (THz) radiation. Specifically we will explore the ultrafast electron dynamics in the nonperturbative regime in semiconductors that have been patterned with nanoantenna arrays using broadband, high intensity, THz radiation. Three main semiconductor materials will be studied in this work....
    Resource Type:
    Dissertation