title: Prospective effect in dispersion properties of photonic crystal fibers by selective water-filling of holes.
abstract: Based on a simple but accurate semivectorial solution of Helmholtz's equation by the finite difference method devised with a mode-field convergence technique, we have shown an interesting and significant effect showing an almost ultraflat zero group velocity dispersion in photonic crystal fiber when the holes of the first ring of the fiber are filled with water. Crosschecking our results with earlier results involving a deeply involved multipole method for the central core of photonic crystal fiber filled with water and fused silica, our observation in the case of filling the first ring holes with water reveals potential information in studies of supercontinuum generation.
authors.forename: Prasenjit
authors.initials: P
authors.lastname: Ghosh
authors.forename: Somenath
authors.initials: S
authors.lastname: Sarkar