Blar i NTNU Open på forfatter "Mølster, Kjell Martin"

Viser treff 1-4 av 4

    • Broadband infrared and THz transmitting silicon core optical fiber 

      Sørgård, Trygve; Song, Seunghan; Vullum, Per Erik; Kores, Cristine; Mølster, Kjell Martin; Laurell, Fredrik; Hawkins, Thomas A.; Ballato, John; Österberg, Ulf Lennart; Gibson, Ursula (Peer reviewed; Journal article, 2020)
      Silicon waveguide structures are a viable alternative for the transmission of signals over a wide range of frequencies, and new fabrication methods are key to increased applications. In this work, THz transparency of ...

    • Terahertz waveguiding in glass+clad silicon wafers 

      Sørgård, Trygve; Mølster, Kjell Martin; Laurell, Fredrik; Pasiskevicius, Valdas; Gibson, Ursula; Österberg, Ulf Lennart (Journal article; Peer reviewed, 2020)
      The waveguiding properties of high-resistivity float zone silicon slab waveguides are characterized over the spectral range from 0.5 to 7.5 THz. Waveguide modes and dispersion are observed for lengths of 1.2 cm and silicon ...

    • THz time domain spectroscopy of materials in reflection and transmission 

      Mølster, Kjell Martin (Master thesis, 2017)
      This thesis presents and describes various improvements to a Terahertz time domain spectroscopy setup using plasma filament for generation and free space electro optic sampling for detection. By performing measurements ...

    • Time-domain spectroscopy of KTiOPO4 in the frequency range 0.6 - 7.0 THz 

      Mølster, Kjell Martin; Sørgård, Trygve; Laurell, Hugo; Canalias, Carlota; Pasiskevicius, Valdas; Laurell, Fredrik; Österberg, Ulf Lennart (Journal article; Peer reviewed, 2019)
      We report on THz time-domain spectroscopy measurements of flux grownKTiOPO4in the frequency range 0.6–7.0 THz (20 to 240 cm−1). Our results compare well with earlierRaman and far-infrared measurements. We theorize that the ...