Comment on 'Reply to comment on "Perfect imaging without negative refraction"'

Paul Kinsler, Alberto Favaro
2011 New Journal of Physics  
Whether or not perfect imaging is obtained in the mirrored version of Maxwell's fisheye lens is debated in the comment/reply sequence [Blaikie-2010njp, Leonhardt-2010njp] discussing Leonhardt's original paper [Leonhardt-2009njp]. Here we show that causal solutions can be obtained without the need for an "active localized drain", contrary to the claims in [Leonhardt-2010njp].
doi:10.1088/1367-2630/13/2/028001 fatcat:ux2mxk36effchhif7drslqmr4u