Photonic crystal line defect waveguides show high group velocity dispersion and slow photon effect near transmission band edge. The group index of the fabricated silicon photonic crystal line defect waveguide is experimentally demonstrated as high as 45 at optical wavelength around 1558 nm. The group velocity dispersion of the fabricated silicon photonic crystal line defect waveguide is as high...

We demonstrate a ring-shaped Bessel-like photonic lattice akin to a photonic bandgap fiber with a low-index core. While the ring lattice is optically induced in a bulk crystal with a self-defocusing nonlinearity, guidance of a probe beam propagating linearly through the core is clearly observed. The possible mechanism for such guidance is also discussed.

We have numerically investigated supercontinuum generation in photonic crystal fibers with zero-dispersion wavelengths in the vicinity of 800 nm by using an input pulse with a peak power of about 20 kW and a width of about 10 fs. The effects of fiber dispersion and the input pulse parameters on the generated optical spectra are quantitatively analyzed. The propagation length necessary for the g...

REFERENCES AND LINKS [1] J. C. Knight, T. A. Birks, D. M. Atkin, and P. St. J. Russel, "Pure silica single-mode fibre with hexagonal photonic crystal cladding", Proc. OFC, PD3, (1996). [2] K. Kurokawa, K. Tajima, J. Zhou, K. Nakajima, T. Matsui, and I. Sankawa, "Penalty-Free DispersionManaged Soliton Transmission over 100 km Low Loss PCF", Proc. OFC, PDP21 (2005). [3] B. J. Mangan, L. Farr, A. ...

A new family of mechanochromic photonic-crystal fibers exhibits tunable structural colors under stretching. This novel mechanochromic fiber is prepared by depositing polymer microspheres onto a continuous aligned-carbon-nanotube sheet that has been wound on an elastic poly(dimethylsiloxane) fiber, followed by further embedding in poly(dimethylsiloxane). The color of the fiber can be tuned by va...

in the present paper, resonant frequencies and modes of a three-atom photonic molecule and a photonic crystal placed within a cavity are numerically calculated. first, governing formulation in transverse electric field mode (te) is obtained using maxwell equations. then, an algorithm based on a finite difference scheme and matrix algebra is presented. the algorithm is then implemented in a comp...

Free-standing "AMTIR-1" (Ge33As12Se55) chalcogenide glass films have been patterned using a focused ion beam (FIB) to create two-dimensional photonic crystal membranes. The triangular lattices were selected for a photonic bandgap relevant to fiber telecommunications. Optical measurements of transmission spectra as a function of incident angle showed clear signs of Fano resonances, indicating th...