Geometrical structure, multifractal spectra and localized optical modes of aperiodic Vogel spirals Trevino, Jacob ; Liew, Seng Fatt ; Noh, Heeso ; Cao, Hui ; Dal Negro, Luca Abstract Publication: Optics Express Pub Date: January 2012 DOI: 10.1364/OE.20.003015 Bibcode: 2012OExpr..20.3015T