@article{pearce,
	title = {Hollow-core PCF for guidance in the mid to far infra-red},
	author = {G.J. Pearce and J.M. Pottage and D.M. Bird and P.J. Roberts and J.C. Knight and P.S.J. Russell},
	crossref = {http://dx.doi.org/10.1364/OPEX.13.006937},
	day = {05},
	journal = {Optics Express},
	month = {09},
	number = {18},
	pages = {6937-6946},
	url = {http://www.opticsexpress.org/abstract.cfm?id=85366},
	volume = {13},
	year = {2005},
	biburl = {http://www.bibsonomy.org/bibtex/2c5961e0984de8387e6c08a50a5271d36/div3},
	abstract = {A major limitation to attaining low-loss single-mode guidance in hollow core photonic crystal fibre (PCF) is surface guided modes that are trapped in the core surround. This is particularly severe when high index (n > 2) glasses are used. By modelling a structure that has the characteristic features of a realistic fibre we show that, by tuning the thickness of the core wall, the influence of these 'surface' modes can be minimised. For a refractive index of 2.4 we predict power-in-air fractions of over 95% over a fractional bandwidth of similar to 5%, peaking at over 98%. The designs are appropriate for mid- to far-IR PCFs for which suitable glasses (e.g., tellurites and chalcogenides) have high refractive indices.},
	keywords = {Fiber_optics div3 fiber_design fiber_fabrication infrared }
}