Scientific Results

Spectral characterization of two-dimensional Thue-Morse quasicrystals realized with high resolution lithography

Year: 2011

Authors: Matarazzo V., De Nicola S., Zito G., Mormile P., Rippa M., Abbate G., Zhou J., Petti L.

Autors Affiliation: CNR – Istituto di Cibernetica ‘E Caianiello’, Via Campi Flegrei 34, 80078 Pozzuoli (Na), Italy; CNR – Istituto Nazionale di Ottica, Via Campi Flegrei 34,80078 Pozzuoli (Na), Italy; CNR-SPIN and Physics Department, University of Naples ‘Federico II’, I-80126 Naples, Italy; Photonics Institute of the University of Ningbo City, Zhejiang Province, People’s Republic of China

Abstract: One-dimensional Thue-Morse (ThMo) lattices are examples of self-similar structures that exhibit bandgap phenomena. ThMo multilayers may also possess fractal photonic bandgaps that give rise to large omnidirectional reflectance and light-emission enhancement effects. Two-dimensional (2D) ThMo aperiodic quasicrystals possess interesting properties for photonic applications too. Here we demonstrate the experimental fabrication of large area 2D ThMo lattices into polymeric substrates at nanometre scale by electron beam lithography (EBL). Far field diffraction patterns of the experimental ThMo structures have been measured and compared with the calculated theoretical Fourier spectra. Scanning electron microscopy and far field diffraction are used to characterize the experimental structures.


Volume: 13 (1)      Pages from: 015602  to: 015602

KeyWords: photonic quasicrystals; electron beam litigraphy; fresenel diffraction; polymer;
DOI: 10.1088/2040-8978/13/1/015602

Citations: 18
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