Slow light in photonic crystal waveguides
TLDR
The physical principles behind the phenomenon of slow light in photonic crystal waveguides, as well as their practical limitations, are discussed and put into context in this paper, including the nature of slow-light propagation, its bandwidth limitation, the scaling of linear and nonlinear interactions with the slowdown factor, issues such as losses, coupling into and the tuning of slow modes.Abstract:
The physical principles behind the phenomenon of slow light in photonic crystal waveguides, as well as their practical limitations, are discussed and put into context This includes the nature of slow light propagation, its bandwidth limitation, the scaling of linear and nonlinear interactions with the slowdown factor as well as issues such as losses, coupling into and the tuning of slow modes Applications in all-optical signal processing appear to be the most promising outcome of the phenomena discussedread more
Citations
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Journal ArticleDOI
Slow light in photonic crystals
TL;DR: In this article, the background theory of slow light, as well as an overview of recent experimental demonstrations based on photonic-band engineering are reviewed, and practical issues related to real devices and their applications are also discussed.
Journal ArticleDOI
The building blocks of magnonics
TL;DR: In this paper, a review of the functionalities of spinwave devices, concepts for spin-wave based computing and magnonic crystals is presented. But the focus of this review is on the control over the interplay between localization and delocalization of the spinwave modes using femtosecond lasers.
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Why do we need slow light
TL;DR: The extreme speed at which light moves, and the fact that photons do not tend to interact with transparent matter, is of enormous benefit to mankind as discussed by the authors, allowing us to see deep into the Universe and to transmit data over long distances in optical fibres.
Journal ArticleDOI
The building blocks of magnonics
TL;DR: In this paper, a review of spin-wave properties and properties is presented, where the crucial parameters to realize free Bloch states and how, by contrast, a controlled localization might allow us to gradually turn on and manipulate spinwave interactions in spinwave based devices in the future.
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Systematic design of flat band slow light in photonic crystal waveguides.
TL;DR: The procedure aims to maximize the group index - bandwidth product by changing the position of the first two rows of holes of W1 line defect photonic crystal waveguides to achieve nearly constant group index- bandwidth product for group indices of 30-90.
References
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Light speed reduction to 17 metres per second in an ultracold atomic gas
Lene Vestergaard Hau,Lene Vestergaard Hau,Stephen E. Harris,Zachary Dutton,Zachary Dutton,Cyrus H. Behroozi,Cyrus H. Behroozi +6 more
TL;DR: In this paper, an experimental demonstration of electromagnetically induced transparency in an ultracold gas of sodium atoms, in which the optical pulses propagate at twenty million times slower than the speed of light in a vacuum, is presented.
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Active control of slow light on a chip with photonic crystal waveguides
TL;DR: An over 300-fold reduction of the group velocity on a silicon chip via an ultra-compact photonic integrated circuit using low-loss silicon photonic crystal waveguides that can support an optical mode with a submicrometre cross-section is experimentally demonstrated.
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Light waves in thin films and integrated optics.
TL;DR: The purpose of this paper is to review in some detail the important development of this new and fascinating field, and to caution the reader that the technology involved is difficult because of the smallness and perfection demanded by thin-film optical devices.
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Extremely Large Group-Velocity Dispersion of Line-Defect Waveguides in Photonic Crystal Slabs
TL;DR: Waveguiding characteristics and group-velocity dispersion of line defects in photonic crystal slabs as a function of defect widths reveal that they can be tuned by controlling the defect width, and the results agree well with theoretical calculations, indicating that light paths with made-to-order dispersion can be designed.
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Enhancement of nonlinear effects using photonic crystals.
TL;DR: If all-optical devices using photonic crystal designs promise to be smaller than the wavelength of light, and to operate with bandwidths that are very difficult to achieve electronically, operation at single-photon power levels could be feasible.