Implications of a zero-nonlinearity wavelength in photonic crystal fibers doped with silver nanoparticles
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Implications of a zero-nonlinearity wavelength in photonic crystal fibers doped with silver nanoparticles
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| Creator |
Bose, Surajit
Sahoo, Ambaresh Chattopadhyay, Rik Roy, Samudra Bhadra, Shyamal Kumar Agrawal, Govind P |
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| Subject |
Processing Science
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| Description |
Photonic crystal fibers doped with silver nanoparticles exhibit a Kerr nonlinearity that can be positive or negative depending on the input wavelength and which vanishes at a specific wavelength. The existence of negative nonlinearity allows soliton formation even in the normal-dispersion region of the fiber, and the zero-nonlinearity wavelength (ZNW) acts as a barrier for the Raman-induced redshift of solitons. We adopted the variational principle to understand the role of the zero-nonlinearity point on Raman redshift and verified its prediction numerically for fundamental and higher-order solitons. We show how the simultaneous presence of a ZNW and a zero-dispersion wavelength affects soliton evolution inside such fibers and find a number of unique features such as the position and the spectral bandwidth of the dispersive wave that change with the location of the ZNW.
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| Publisher |
American Physical Society
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| Date |
2016-10
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/3808/1/surajit.pdf
Bose, Surajit and Sahoo, Ambaresh and Chattopadhyay, Rik and Roy, Samudra and Bhadra, Shyamal Kumar and Agrawal, Govind P (2016) Implications of a zero-nonlinearity wavelength in photonic crystal fibers doped with silver nanoparticles. Physical Review A, 94 (4). Article No-043835. ISSN 1050-2947 |
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| Relation |
http://cgcri.csircentral.net/3808/
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