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Title: All-Dielectric Periodic Media Engineered for Slow Light Studies
Authors: Kurt, Hamza
Keywords: Photonic band gap materials
integrated optics
optical wave gides
optical design
optical couplers
Issue Date: 2013
Publisher: World Scientific Publ Co Pte Ltd
Abstract: The paper presents various novel approaches to implementing slow light media by manipulating the group velocity via dispersion engineering of guided modes. Light is confined and then linked with a low group velocity inside a photonic crystal waveguide (PCW) and at the PC-air interface. We discuss both basic and engineered slow light waveguide structures. The structural changes in PCs greatly modify the spectral characteristics of the dispersion curves. The search for flat bands gives rise to various strategies for slowing the optical pulses. An appropriate and commonly adopted figure of merit (FOM) is accepted to quantify and characterize the performance of the designed slow light devices. The trade-off relationship between the group index and the bandwidth is highlighted. Efficient excitation of slow modes demands the design of additional interfaces as couplers between the input waveguide and slow mode guide structure. Other challenges of slow light studies, such as various loss sources, are mentioned. Finally, the potential applications of slow light are outlined, and remarks on future directions are presented.
ISSN: 0217-9792
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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