Small Group Velocity of Line Defect in Two-dimensional Photonic Crystal
نویسندگان
چکیده
منابع مشابه
Extremely large group-velocity dispersion of line-defect waveguides in photonic crystal slabs.
We reveal experimentally waveguiding characteristics and group-velocity dispersion of line defects in photonic crystal slabs as a function of defect widths. The defects have waveguiding modes with two types of cutoff within the photonic band gap. Interference measurements show that they exhibit extraordinarily large group dispersion, and we found waveguiding modes whose traveling speed is 2 ord...
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Using numerical simulations, we demonstrate the construction of two-dimensional~2D-! like defect modes in a recently proposed 3D photonic crystal structure. These modes, which are confined in all three dimensions by a complete photonic band gap, bear a striking similarity to those in 2D photonic crystals in terms of polarization, field profile, and projected band structures. It is expected that...
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Introduction: Two-dimensional (2D) photonic crystal (PC) waveguides are expected to be one of the significant platforms in future optical communication networks. To date, much effort has been devoted to the light guidance by 2D-PC line-defect waveguides that achieve a 3D optical confinement by use of a combination of the photonic bandgap and total internal reflection [1–5], and small propagatio...
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Phase sensitive optical transmission measurements have been performed on three dimensional opal-based photonic crystals containing a planar defect. From numerical derivation of the measured phase, the group velocity has been retrieved. Strong modulations in the group velocity are seen to correlate with a recovery in the transmission inside the forbidden spectral interval, demonstrating the pres...
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ژورنال
عنوان ژورنال: Journal of the Korean Institute of Electrical and Electronic Material Engineers
سال: 2010
ISSN: 1226-7945
DOI: 10.4313/jkem.2010.23.2.128