FLEXIBLE ALUMINA CERAMIC WAVEGUIDES FOR TERAHERTZ APPLICATIONS

    公开(公告)号:US20210063637A1

    公开(公告)日:2021-03-04

    申请号:US17001909

    申请日:2020-08-25

    Abstract: The THz waveguides disclosed herein are used to transmit signals having a THz frequency in the range from 0.1 THz to 10 THz and include an alumina core surrounded by an optional cladding. The core may have a diameter (D1) in the range from 10 μm to 500 μm and may be comprised of a ceramic ribbon having a dielectric constant (Dk). The optional cladding may have a dielectric constant (Dk) less than the core. The THz waveguides can be formed using a continuous firing process and nano-perforation technology that enables access to a wide form factor range. In one example, rectangular waveguides, or ribbons, may be fabricated in the 10 μm to 200 μm thick range at widths in the range from sub-millimeters to several meters and lengths in the range from millimeters to several hundred meters.

    Doping of other polymers into organic semi-conducting polymers

    公开(公告)号:US11283023B2

    公开(公告)日:2022-03-22

    申请号:US16620050

    申请日:2018-06-01

    Abstract: Disclosed is a polymer blend comprising an organic semiconductor (OSC) polymer blended with an isolating polymer and method for making the same. The OSC polymer includes a diketopyrrolopyrrole fused thiophene polymeric material, and the fused thiophene is beta-substituted. The isolating polymer includes a non-conjugated backbone, and the isolating polymer may be one of polyacrylonitrile, alkyl substituted polyacrylonitrile, polystyrene, polysulfonate, polycarbonate, an elastomer block copolymer, derivatives thereof, copolymers thereof and mixtures thereof. The method includes blending the OSC polymer with an isolating polymer in an organic solvent to create a polymer blend and depositing a thin film of the polymer blend over a substrate. Also disclosed is an organic semiconductor device that includes a thin semiconducting film comprising OSC polymer.

    GLASS COMPOSITION
    9.
    发明申请
    GLASS COMPOSITION 审中-公开

    公开(公告)号:US20200148580A1

    公开(公告)日:2020-05-14

    申请号:US16662500

    申请日:2019-10-24

    Abstract: A glass article, having SiO2 from about 61 wt. % to about 62 wt. %; Al2O3 from about 18 wt. % to about 18.4 wt. %; B2O3 from about 7.1 wt. % to about 8.3 wt. %; MgO from about 1.9 wt. % to about 2.2 wt. %; CaO from about 6.5 wt. % to about 6.9 wt. %; SrO from about 2.5 wt. % to about 3.6 wt. %; BaO from about 0.6 wt. % to about 1.0 wt. %; and SnO2 from about 0.1 wt. % to about 0.2 wt. %, a refractive index of about 1.515 to about 1.517 at an optical wavelength of about 589 nm; a VD of about 57 to about 67; less than or equal to about 5 μm total thickness variation over a component diameter of about 200 mm, less than or equal to about 20 μm warp over a component diameter of about 200 mm, and wedge less than or equal to about 0.1 arcmin.

Patent Agency Ranking