Essays about: "refractive index"

Showing result 16 - 20 of 50 essays containing the words refractive index.

  1. 16. Simulation of birefringence effects for high-energy neutrino detectors

    University essay from Uppsala universitet/Högenergifysik

    Author : Nils Heyer; [2021]
    Keywords : astroparticle physics; radio detection; high-energy neutrinos; birefringence;

    Abstract : The detection of high-energy neutrinos in the E > O(PeV) range requires newdetection techniques in order to cope with the decreasing flux. The radio detectionmethod uses Askaryan emission to detect these neutrinos. READ MORE

  3. 17. 3D-Printed Geodesic Reflective Luneburg Lens Antenna for X-Band

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : David Oxelmark; Lukas Jonasson; [2021]
    Keywords : 3D-printing; Geodesic lens; Reflective Luneburg lens; Transformation optics; Waveguide; X-band;

    Abstract : With the rise of 5G and the increasing number ofdevices, novel antenna designs are needed to meet the demandof the future. In this report, the authors present a design andexperimental verification of a 3D-printed Geodesic ModulatedReflective Luneburg lens antenna working at the X-Band, 8-12GHz. READ MORE

  4. 18. Towards Underwater UV Communication- Simulation and Experimentation on Penetration of UV Radiation into Sea water.

    University essay from Blekinge Tekniska Högskola

    Author : Subhash Chandra Ranga; [2021]
    Keywords : Optical Communication; Underwater communication Underwater communication Optical communication; Underwater communication Acoustic communication; Underwater communication Microwave communication; Visible Light Communication; Refractive Index.;

    Abstract : People around the globe are immensely trying to connect using light as carrier due to its low power consumption and high data transfer rates. Sound and microwaves are examples of other carriers that can be used, although they aren't nearly as efficient as light. A method of communicating is using light beneath the surface of the water. READ MORE

  5. 19. Dual Polarized Geodesic Lens

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Freysteinn Vidar Vidarsson; [2020]
    Keywords : ;

    Abstract : Gradient-index (GRIN) lens antennas, such as the Luneburg lens, posses attractive electromagnetic properties. The smooth change in refractive index ensures no internal reflections and the focusing of the electromagnetic waves results in a directive antenna. The main challenge of the design of a GRIN lens is acquiring the required refractive index. READ MORE

  6. 20. A Discrete Cylindrical Luneburg Lens With Liquid Layers

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Curt-Herman Normark Frisk; Erik Algarp; [2020]
    Keywords : Luneburg lens; 5G; high directivity; liquid lens; transparent liquids;

    Abstract : In this project, a cylindrical Luneburg lens isdesigned operating at optical frequencies. A Luneburg lens isa gradient index lens that transforms a point source into aplane wave or vice versa. The lens is rotational symmetric whichallows wide-angle beam scan. In this work, the gradient indexis discretized in layers. READ MORE