In:
Journal of Materials Research, Springer Science and Business Media LLC, Vol. 17, No. 8 ( 2002-08), p. 2095-2098
Abstract:
Planar thin films of dye-doped silica were prepared by sol-gel synthesis. The optical properties of the films were characterized by transmittance measurements in the visible-infrared range and by photoluminescence. Micropatterns whose feature size was on the order of 2.4 μm, were imprinted on the film surface by a simple soft lithography approach. An optical microscope interfaced to a charge-coupled device camera was used to image the imprinted patterns and to analyze the patterned films photoluminescence. A sensitive spectral narrowing of the emission, which occurred only in micropatterned films, was attributed to the lateral confinement of the luminescence due to the micrometer-scale modulation of refractive index produced by the embossing procedure.
Type of Medium:
Online Resource
ISSN:
0884-2914
,
2044-5326
DOI:
10.1557/JMR.2002.0309
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2002
detail.hit.zdb_id:
54876-5
detail.hit.zdb_id:
2015297-8
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