Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/6693
Title: Extraordinary wavelength dependence of self-collimation effect in photonic crystal with low structural symmetry
Authors: Turduev, Mirbek
Giden, İbrahim Halil
Kurt, Hamza
Keywords: Photonic crystals
Self-collimation
Integrated optics
Equi-frequency surface
Diffraction
Wavelength division multiplexing
Issue Date: 2013
Publisher: Elsevier
Abstract: We present the optical properties of a new type of photonic crystal (PC) named star-shaped PC (STAR-PC) with anomalous equi-frequency contours. Intentionally introducing low-symmetry in the primitive unit cell gives rise to progressively tilting flat contours, which are observed in the fifth band of the transverse magnetic mode. Due to the intrinsic dispersive feature of the proposed PCs, i.e. tilted self-collimation, the incident signal with different wavelengths can be successfully separated in a spatial domain without introducing any corrugations or complexities inside the structure. We show numerical investigations of wavelength selective characteristic of the proposed PC structure in both time and frequency domains. The STAR-PC approach can be considered a good candidate for the wavelength division applications in the design of compact photonic integrated circuits. For the purpose of wavelength separation implementations, the proposed structure may operate within the wavelength interval of 1484.5-1621.5 nm with a broad bandwidth of 8.82%. The corresponding inter-channel crosstalk value is as low as -19 dB and the calculated transmission efficiency is above 97%. (C) 2013 Elsevier B.V. All rights reserved.
URI: https://doi.org/10.1016/j.photonics.2013.04.004
https://hdl.handle.net/20.500.11851/6693
ISSN: 1569-4410
1569-4429
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Show full item record

CORE Recommender

SCOPUSTM   
Citations

14
checked on Sep 23, 2022

WEB OF SCIENCETM
Citations

13
checked on Sep 24, 2022

Page view(s)

26
checked on Dec 26, 2022

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.