Articolo in rivista, 2008, ENG, 10.1364/OE.16.005164

Two-dimensional photonic quasicrystals by single beam computer-generated holography

G. Zito 1,2; B. Piccirillo 1,2; E. Santamato 1,2; A. Marino 1,3; V. Tkachenko 3; G. Abbate 1,3,4

1 Department of Physics, University Federico II of Naples, via Cinthia, 80126 Naples, Italy; 2CNISM, Consorzio Nazionale Interuniversitario per le Scienze fisiche della Materia c/o Physics Dpt. University of Naples Federico II, via Cinthia, 80126 Naples, Italy; 3CNR-INFM - Coherentia c/o Physics Dpt. University of Naples Federico II, via Cinthia, 80126 Naples, Italy; 4 CNR-INFM Licryl - Liquid Crystal Laboratory c/o Physics Dpt. University of Calabria 87036 Rende (CS), Italy

Recently important efforts have been dedicated to the realization of a new kind of photonic crystals, known as photonic quasicrystals, in which the lack of the translational symmetry is compensated by rotational symmetries not achievable by the conventional periodic crystals. Here we show a novel approach to their fabrication based on the use of a programmable Spatial Light Modulator encoding Computer-Generated Holograms. Using this single beam technique we fabricated Penrose-tiled structures possessing rotational symmetry up to 23-fold, and a two-dimensional Thue-Morse structure, which is an aperiodic structure not achievable by multiple beam holography

Optics express 16 , pp. 5164–5170

Keywords

computer holography, microstructure fabrication, spatial light modulators, photonic bandgap materials

CNR authors

Abbate Giancarlo, Marino Antigone, Tkachenko Volodymyr

CNR institutes

SPIN – Istituto superconduttori, materiali innovativi e dispositivi