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Scientific article
English

Electromagnetic field confined and tailored with a few air holes in a photonic-crystal fiber

Published inApplied physics. B, Lasers and optics, vol. 81, no. 2-3, p. 409-414
Publication date2005
Abstract

Conventional and scanning near-field optical microscopy techniques are cross referenced to femtosecond nonlinear-optical measurements and finite-element numerical simulations to visualize and analyze a strong confinement of electromagnetic radiation in guided modes of a photonic-crystal fiber with only a few air holes surrounding the fiber core. A nonlinear coefficient of about 120 W−1 km−1 is achieved at the wavelength of 670 nm for a fused-silica fiber with a full hexagonal cycle of closely packed air holes around the fiber core. The removal of a single element from this array of air holes is shown to frustrate field confinement in guided modes, leading to mode leakage

Citation (ISO format)
APETREI, A. M. et al. Electromagnetic field confined and tailored with a few air holes in a photonic-crystal fiber. In: Applied physics. B, Lasers and optics, 2005, vol. 81, n° 2-3, p. 409–414. doi: 10.1007/s00340-005-1855-9
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ISSN of the journal0946-2171
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