| Stopping of light by the dynamic tuning of photonic crystal slow light device. | |
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MedLine Citation:
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PMID: 20721103 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We propose a simple technique of stopping light pulses using a slow-light device based on photonic crystal coupled waveguide (PCCW). Dynamically tuning the material index chirp in the PCCW adiabatically transforms slow-light pulses into stopped ones. We demonstrate this in finite-difference time-domain simulation assuming ideal and actual tuning of the index chirp. In the ideal case, the group velocity of the almost stopped pulse is reduced to 190 times smaller than that of simple slow light pulse. The smallest limit is affected by the timing error of the tuning between wavelengths. Re-ordering and stopping of a pulse train are possible by optimizing the device length and timing. As a practical tuning method, we discuss carrier effects induced by photo-excitation. Taking into account carrier distribution and free carrier absorption, the actual behaviors of stopped light are estimated. We define and evaluate an effective delay-bandwidth product, which is affected by free carrier absorption. |
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Authors:
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Yuji Saito; Toshihiko Baba |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Optics express Volume: 18 ISSN: 1094-4087 ISO Abbreviation: Opt Express Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-08-19 Completed Date: 2011-01-11 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101137103 Medline TA: Opt Express Country: United States |
Other Details:
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Languages: eng Pagination: 17141-53 Citation Subset: IM |
Affiliation:
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Department of Electrical and Computer Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogayaku, Yokohama 240-8501, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Computer Simulation* Equipment Design Manufactured Materials Optics and Photonics / instrumentation* Photons* Scattering, Radiation* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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