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allied
academies
August 23-24, 2018 | Paris, France
Laser, Optics and Photonics
International Conference on
Journal of Materials Science and Nanotechnology | Volume: 2
Hybrid structured photonic crystal fiber for terahertz applications
KM Samaun Reza
FZI Research Centre Computer Science, Germany
E
lectromagnetic wave lying in between that of millimetre
wave and Infrared ray in the frequency region of 0.1THz
to 10THz has attracted the researchers for their wide spread
application in the fields of sensing, biotechnology, imaging,
security, pharmaceutical drug testing, spectroscopy and
communication. But the biggest hindrance of its widespread
development and commercialization material loss and
propagation loss plays a vital role. Therefore, much research
is conducted in this field for the development of ultra-
low material loss Optical Fibers. In this letter a Kagome
structured photonic crystal fiber for low-loss terahertz
(THz) wave guiding has been designed and analyzed. A
perfectly matched layer (PML) which is of 9% of the radius
of the fiber has been used in the boundary to investigate
the transmission characteristics. Most of the attention is
given to the geometries of the fiber to increase the fraction
of power transmitted through core air. The proposed fiber
at the diameter of 420µm and porosity of 80% has shown
ultra-low material loss of 0.0326 at relatively high frequency
of 1.25THz. Properties like: Power fraction of the core
air holes with respect to frequency and core diameter,
responses of the effective material loss with respect to
core diameter and frequency, confinement loss, dispersion
have been reported and well discussed. The design can be
fabricated following the existing fabrication technology. Due
to the favorable wave-guiding properties of the proposed
fiber, it can be anticipated that the proposed PCF can be
applicable in polarized THz filters, sensors and multichannel
communication.
e:
samaunreza@iut-dhaka.edu