6 research outputs found
Dodecanacci superconductor-metamaterial photonic quasicrystal
Using the transfer matrix method, the present paper attempt to determine the
properties of the photonic spectra of the Dodecanacci
superconductor-metamaterial one-dimensional quasiperiodic multilayer. The
numerical calculation is supported by using the transfer matrix method. At
first, we analyze the transmission for Dodecanacci quasicrystal for different
generations. After that, we analyze the effect of the thickness of the building
blocks and the operating temperature. We observed that a vast number of
forbidden bandgaps and transmission pecks are developed in its transmission
spectra up to a certain generation number of Dodecanacci quasiperiodic
sequence. If the generation number increases further, then the bandgaps become
wider. According to the obtained results, depending on its generation, this
structure can be used as an optical reflector or narrowband filter
Design of an Ultra-Compact and Highly-Sensitive Temperature Sensor Using Photonic Crystal Based Single Micro-Ring Resonator and Cascaded Micro-Ring Resonator
Abstract
In the present report, a photonic crystal based micro-ring resonator (MRR) structure is proposed which is very compact in size and has very fast response and is employed for temperature sensing purpose. Temperature sensing application for both the single MRR and cascaded MRR is illustrated in this paper. The sensitivity of the reported structure is increased from 2.9聽nm/掳C to 3.4聽nm/掳C by cascading two MRR. The refractive index of the material is subjected to change with the variation in temperature which results in the shift of the resonant wavelength of the proposed sensor. The finite difference time domain (FDTD) simulation is utilized to see the transmission spectrum of the proposed structure and analyzing the shift in the resonance wavelength the temperature is calculated. The proposed design is simple, reliable and may be integrated into different transducer and sensing applications