Pure optical nano-writing on light-switchable spiropyrans/merocyanine thin film

Year: 2014

Authors: Triolo C., Patanè S., Mazzeo M., Gambino S., Gigli G., Allegrini M.

Autors Affiliation: Dipartimento di Fisica e di Scienze della Terra, Università di Messina, Viale S. D’Alcontres, 98123 Messina, Italy; Dipartimento di Matematica e Fisica “E. De Giorgi”, Università del Salento, Via Monteroni, 73100 Lecce, Italy; CNR-NANO Istituto Nanoscienze, Via per Arnesano 16, 73100 Lecce, Italy; Center for Biomolecular Nanotechnology (CBN), Italian Institute of Technology (IIT), Via Barsanti 1, 73010 Arnesano, Italy; Dipartimento di Fisica “Enrico Fermi”, Università di Pisa and INO-CNR, Sezione di Pisa, Largo Bruno Pontecorvo 3, 56127 Pisa, Italy

Abstract: We report optical writing at the nanometer scale of spin coated PMMA-spiropyran films. By using a near-field optical microscope, pure optical nano-writing with a resolution of 160 nm and writing speed of 0.4 mu m/s was achieved. Simultaneous topographic and optical writing was also obtained by simply coupling to the near-field few more mW of laser power. Due to the fast optical response of the spiropyran molecule, nanolithography on PMMA-spyropyran thin films appears to be very attractive for future photonics applications. (C)2014 Optical Society of America

Journal/Review: OPTICS EXPRESS

Volume: 22      Pages from: 283  to: 288

More Information: Work supported by the research project POLOPTEL of Fondazione Cassa di Risparmio di Pisa per la ricerca scientifica e tecnologica.
DOI: 10.1364/OE.22.000283

Citations: 9
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