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Title: Asymmetric Light Propagation in Photonic Devices
Authors: Kurt, Hamza
Keywords: photonic crystals
optical waveguides
asymmetric light propagation
Issue Date: 2013
Publisher: IEEE
Source: 15th International Conference on Transparent Optical Networks (ICTON) -- JUN 23-27, 2013 -- Cartagena, SPAIN
Series/Report no.: International Conference on Transparent Optical Networks-ICTON
Abstract: Altering light propagation direction, i.e., forward vs. backward in photonic devices gives rise to same optical response due to reciprocity theorem. Complete or partial manipulation of bidirectional propagation characteristic of light via certain approach may contribute the implementation of functional photonic devices. Complete control over the light propagation direction gives rise to a photonic device that acts as an optical diode whose semiconductor electronic counterpart produces extremely well signal isolation for the backward propagating electrical current. Optical diode also known as optical isolator is sensitive to light propagation direction. The widespread approaches utilize either magneto-optical effect or nonlinear optics concept. Meanwhile, any practical and partial solution considering linear optic approach may be preferable due to compatibility with the integrated photonics. We have proposed various artificially engineered (spatially asymmetric) dielectric media to induce asymmetric optical signal propagation. Numerical results based on finite-difference time-domain results prove that the asymmetric light propagation is achieved with the proposed photonic structures.
ISBN: 978-1-4799-0683-3
ISSN: 2162-7339
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

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