Researcher:
Bukhari, Syed Sultan Shah

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PhD Student

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Syed Sultan Shah

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Bukhari

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Bukhari, Syed Sultan Shah

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2014 - 20185

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Researcher Of Publications: search.filters.isAuthorOfPublication.07fc8b92-a743-4148-8e15-acf6fd94a6f7

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Now showing 1 - 5 of 5
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    THz region elastic scattering from a silica microsphere
    (Optica Publishing Group (formerly OSA), 2018) N/A; N/A; N/A; N/A; Department of Physics; Kurt, Suat; Yavuz, Nurperi; Bukhari, Syed Sultan Shah; Serpengüzel, Ali; PhD Student; Master Student; PhD Student; Faculty Member; Department of Physics; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; College of Sciences; N/A; N/A; N/A; 27855
    Using generalized Lorenz-Mie theory, we investigated TE and TM polarized 0° transmission and 90° elastic scattering spectra from a silica microsphere with a radius of 200 μm in the Terahertz region from 110 μm to 130 μm. The numerically observed mode spacing of 7 μm agrees well with the theoretically estimated value for both TE and TM polarized WGMs. The observed WGM quality factors are on the order of 104. With these numerically observed spectral responses, silica microspheres can be used in novel THz region applications.
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    Elastic scattering from a sapphire microsphere in the THz region
    (Optica Publishing Group (formerly OSA), 2014) N/A; N/A; N/A; Department of Physics; Bukhari, Syed Sultan Shah; Chaudhry, Muhammad Rehan; Bayer, Mustafa Mert; Serpengüzel, Ali; PhD Student; PhD Student; Master Student; Faculty Member; Department of Physics; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; College of Sciences; N/A; N/A; N/A; 27855
    We analyze numerically TE and TM polarization 0° transmission and 90° elastic scattering from a sapphire microsphere with a radius of 2000 μm in terahertz region from 790 μm to 850 μm by utilizing generalized Lorenz-Mie theory.
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    Elastic scattering from germanium microspheres in the terahertz region
    (IEEE, 2016) N/A; N/A; Department of Physics; Bukhari, Syed Sultan Shah; Chaudhry, Muhammad Rehan; Serpengüzel, Ali; PhD Student; PhD Student; Faculty Member; Department of Physics; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; College of Sciences; N/A; N/A; 27855
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    Optoelectronic applications of sapphire microspheres
    (Electromagnetics Academy, 2015) N/A; N/A; N/A; N/A; Department of Physics; Zakwan, Muhammad; Anwar, Muhammad Sohail; Bukhari, Syed Sultan Shah; Gökay, Ulaş Sabahattin; Serpengüzel, Ali; PhD Student; Master Student; PhD Student; PhD Student; Faculty Member; Department of Physics; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; College of Sciences; N/A; N/A; N/A; N/A; 27855
    The sphere with its highly symmetric geometrical shape enhances the efficiency of optical effects with its high quality factor morphology dependent resonances (MDRs). We report here on numerical studies of elastic light scattering in a sapphire microdisk coupled to slab waveguides, i.e., the 2D analog of a microsphere coupled to the 2D analog of an optical waveguide. The numerical electromagnetic simulations for the surface electric field strength are performed at 800 nm. The experimental elastic light scattering measurements are also proposed in the near-infrared from sapphire microspheres. 800 nm operation with sapphire microspheres is suitable for local area networks (LANs) applications such as channel dropping, filtering, switching, modulation, and monitoring.
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    Spatial intensity profiling of elastic and inelastic scattering in isotropic and anisotropic liquids by immersion of a spherical silicon photocell
    (Optical Soc Amer, 2017) Taira, Kenichi; Omura, Etsuji; Nakata, Josuke; N/A; N/A; N/A; N/A; N/A; Department of Physics; Humayun, Muhammad Hamza; Bukhari, Syed Sultan Shah; Zakwan, Muhammad; Bayer, Mustafa Mert; Gökay, Ulaş Sabahattin; Serpengüzel, Ali; Master Student; PhD Student; PhD Student; Master Student; PhD Student; Faculty Member; Department of Physics; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; College of Sciences; N/A; N/A; N/A; N/A; N/A; 27855
    The transverse spatial intensity distribution of elastic and inelastic light scattering in passive and active as well as weak and strong scattering liquid media has been studied by using Sphelar One p-n junction silicon spherical photocells. We immersed a Sphelar One in these scattering solutions and measured the photoconductive response in reverse biased photodiode (PD) configuration. The passive weak scattering medium was pure ethanol (EtOH), whereas the passive strong scattering medium was 5CB nematic liquid crystal (NLC). Solutions of 0.1 mM Rhodamine 640 perchlorate laser dye in EtOH and in 5CB NLC were used as active scattering media. The response of Sphelar One was strongly enhanced in 5CB NLC compared to EtOH, as well as in active solutions compared to passive solutions. The morphology of the Sphelar One is already advantageous over conventional one-sided planar PDs inside liquid solutions. This omnidirectional response of the Sphelar One can further be enhanced by optimizing the properties of the surrounding passive elastic and active inelastic scatterers.