Ultraviolet and infrared femtosecond laser induced periodic surface structures on thin polymer films
- Instituto de Quimica Fisica Rocasolano, CSIC, Serrano 119, 28006 Madrid (Spain)
- Grupo de Investigacion en Microprocesado de Materiales con Laser, Universidad de Salamanca, Plaza de la Merced s/n, 37008 Salamanca (Spain)
- Centro de Laseres Pulsados Ultracortos Ultraintensos, CLPU, Plaza de la Merced s/n, 37008 Salamanca (Spain)
- Instituto de Estructura de la Materia, IEM-CSIC, Serrano 121, 28006 Madrid (Spain)
This work demonstrates the formation of femtosecond laser induced periodic surface structures (LIPSS) by multipulse irradiation with the fundamental and 3rd harmonic of a linearly polarized Ti:sapphire laser (795 and 265 nm) on thin films of the polymers poly (ethylene terephthalate), poly (trimethylene terephthalate), and poly (carbonate bisphenol A) prepared by spin-coating. LIPSS, inspected by atomic force microscopy, are formed upon multiple pulse UV and IR irradiation with wavelength-sized period in a narrow range of fluences below the ablation threshold. Control and tunability of the size and morphology of the periodic structures become thus possible ensuring photochemical integrity of polymer films.
- OSTI ID:
- 22025413
- Journal Information:
- Applied Physics Letters, Vol. 100, Issue 4; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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