INVESTIGADORES
MARTINEZ Oscar Eduardo
artículos
Título:
Fluorescent two-photon nanolithography
Autor/es:
DARÍO KUNIK; S. J. LUDUEÑA; COSTANTINO, SANTIAGO; OSCAR EDUARDO MARTÍNEZ
Revista:
JOURNAL OF MICROSCOPY-OXFORD
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Lugar: Osford; Año: 2008 vol. 229 p. 540 - 544
ISSN:
0022-2720
Resumen:
Improving the excitation conditions in two-photon fluorescent
lithography reduces the size of the fabricated structures to
nanometre scales.We demonstrate that a precise control of the
illumination profile and the scanning speed of the laserbeamis
enough to decrease the photo-polymerization volume of resins
by orders of magnitude. This work also shows experimental
evidence of surface effects that yield a different polymerization
intensity threshold compared with bulk. Such phenomenon
enables to perform a non-linear optical nanolithography
in a simple way, allowing fast-prototyping procedures. We
present a detailed study of the polymer growth process using
fluorescence and atomic force microscopy.