Browsing by Keywords "Q factor measurement"

Now showing items 1-6 of 6

    • Grating based plasmonic band gap cavities 

      Şenlik, S. Seçkin; Kocabaş, Aşkın; Aydınlı, Atilla (Optical Society of American (OSA), 2009-08)
      We report on a comparative study of grating based plasmonic band gap cavities. Numerically, we calculate the quality factors of the cavities based on three types of grating surfaces; uniform, biharmonic and Moiré surfaces. ...

    • Laser-micromachined millimeter-wave photonic band-gap cavity structures 

      Özbay, Ekmel; Tuttle, G.; McCalmont, J. S.; Sigalas, M.; Biswas, R.; Soukoulis, C. M.; Ho, K. M. (American Institute of Physics, 1995)
      We have used laser-micromachined alumina substrates to build a three-dimensional photonic band-gap crystal. The rod-based structure has a three-dimensional full photonic band gap between 90 and 100 GHz. The high resistivity ...

    • Light-controlled microwave whispering-gallery-mode quasi-optical resonators at 50W LED array illumination 

      Yurchenko V.B.; Ciydem, M.; Altintas, A. (American Institute of Physics Inc., 2015)
      We present experimental observations of light-controlled resonance effects in microwave whispering-gallery-mode quasi-optical dielectric-semiconductor disk resonators in the frequency band of 5 GHz to 20 GHz arising due ...

    • Magnetic resonance imaging assisted by wireless passive implantable fiducial e-markers 

      Gokyar, S.; Alipour, A.; Unal, E.; Atalar, Ergin; Demir, Hilmi Volkan (Institute of Electrical and Electronics Engineers, 2017)
      This paper reports a wireless passive resonator architecture that is used as a fiducial electronic marker (e-marker) intended for internal marking purposes in magnetic resonance imaging (MRI). As a proof-of-concept ...

    • Polarization characteristics of compact SOI rib waveguide racetrack resonators 

      Kiyat, I.; Aydınlı, Atilla; Dagli, N. (IEEE, 2005)
      We report on the development of compact optical racetrack resonators on silicon-on-insulator (SOI) rib waveguides. We make use of large-cross-section waveguides instead of photonic wire waveguides. We fabricated resonators ...

    • RF-MEMS load sensors with enhanced Q-factor and sensitivity in a suspended architecture 

      Melik, R.; Unal, E.; Perkgoz, N. K.; Puttlitz, C.; Demir, Hilmi Volkan (Elsevier, 2010-11-09)
      In this paper, we present and demonstrate RF-MEMS load sensors designed and fabricated in a suspended architecture that increases their quality-factor (Q-factor), accompanied with an increased resonance frequency shift ...