Fabrication of Fresnel zone plate embedded in silica glass by femtosecond laser pulses Watanabe, Wataru ; Kuroda, Daisuke ; Itoh, Kazuyoshi ; Nishii, Junji Abstract Publication: Optics Express Pub Date: September 2002 DOI: 10.1364/OE.10.000978 Bibcode: 2002OExpr..10..978W