Electromagnetic field confined and tailored with a few air holes in a photonic-crystal fiber,
A M Apetrei, J M Moison, J A Levenson, M Foroni, F Poli, A Cucinotta, S Selleri, M Legre, M Wegmuller, N Gisin, K V Dukel'skii, A V Khokhlov, V S Shevandin, Y N Kondrat'ev, C Sibilia, E E Serebryannikov, A M Zheltikov,
Applied Physics B-lasers and Optics 81, 409--414 (2005)