Ambrosio, Antonio and Maddalena, Pasqualino and Carella, Antonio and Borbone, Fabio and Roviello, Antonio (2009) Two-photon patterning of a polymer containing Y-shaped azochromophores. [Pubblicazione in rivista scientifica]
Il contenuto (Full text) non è disponibile all'interno di questo archivio.| Tipologia del documento: | Pubblicazione in rivista scientifica |
|---|---|
| Lingua: | English |
| Titolo: | Two-photon patterning of a polymer containing Y-shaped azochromophores |
| Autori: | Autore Email Ambrosio, Antonio [non definito] Maddalena, Pasqualino [non definito] Carella, Antonio [non definito] Borbone, Fabio [non definito] Roviello, Antonio [non definito] |
| Autore/i: | Ambrosio A., Orabona E., Maddalena P., Camposeo A., Polo M., Neves A. A. R., Pisignano D., Carella A., Borbone F., Roviello A. |
| Data: | 2009 |
| Numero di pagine: | 3 |
| Dipartimento: | Scienze fisiche |
| Titolo del periodico: | APPLIED PHYSICS LETTERS |
| Data: | 2009 |
| Volume: | 94 |
| Intervallo di pagine: | 11115/1-11115/3 |
| Numero di pagine: | 3 |
| Parole chiave: | photonic, azo-polymers, two photon absorption, SRG |
| Depositato il: | 21 Ott 2010 06:56 |
| Ultima modifica: | 30 Apr 2014 19:43 |
| URI: | http://www.fedoa.unina.it/id/eprint/7447 |
Abstract
We report on the patterning of the free surface of azo-based polymer films by means of mass migration driven by one- or two-photon absorption. A symmetric donor-acceptor-donor structured Y-shaped azochromophore is specifically synthesized to enhance two-photon absorption in the polymer. The exposure of the polymer film to a focused laser beam results in light-driven mass migration for both one- and two-photon absorptions. Features with subdiffraction resolution (250 nm) are realized and the patterning dynamics is investigated as a function of the light dose. Furthermore, functional photonic structures, such as diffraction gratings with periods ranging between 0.5 and 2.0 μm, have been realized.
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