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: Univ Messina, Dipartimento Fis & Sci Terra, I-98123 Messina, Italy; Univ Salento, Dipartimento Matemat Fis E De Giorgi, I-73100 Lecce, Italy; CNR, NANO Ist Nanosci, I-73100 Lecce, Italy; Italian Inst Technol, Ctr Biomol Nanotechnol, I-73010 Arnesano, Italy; Univ Pisa, Dipartimento Fis Enrico Fermi, I-56127 Pisa, Italy; INO CNR, Sez Pisa, I-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 (1)      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.
KeyWords: Field; Polymers; Devices; Temperature; Lithography; Microscopy; Resolution
DOI: 10.1364/OE.22.000283

Citations: 10
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