2003 (v1)
Publication
No description
Uploaded on: April 14, 2023
-
-
2002 (v1)Publication
No description
Uploaded on: April 14, 2023 -
2003 (v1)Publication
No description
Uploaded on: April 14, 2023 -
2001 (v1)Publication
No description
Uploaded on: March 31, 2023 -
2005 (v1)Publication
No description
Uploaded on: March 25, 2023 -
2003 (v1)Publication
Three-dimensional artificial opals showing photonic crystals properties are grown by self-assembly of polystyrene nanospheres. Atomic force microscopy (AFM) images of opal surfaces show domains with regular triangular and squared packing of the spheres separated by cracks whose relative fraction depends on the sample quality. The energy...
Uploaded on: March 25, 2023 -
2011 (v1)Publication
No description
Uploaded on: April 14, 2023 -
2003 (v1)Publication
Absorption and photoinduced absorption (PIA) spectra of thin films of polycarbazolyldiacetylenes carrying alkyl (polyDCHD-HS) or acyl (polyDPCHD) substitutions are reported. The absorption spectra are dominated by an excitonic absorption followed by a vibronic progression, and are quite insensitive to the temperature. The PIA spectra show the...
Uploaded on: March 31, 2023 -
2003 (v1)Publication
Polystyrene artificial opals have been grown by slow gravity sedimentation from aqueous suspension of monodisperse nano-spheres of different diameters. These opals have been infiltrated with diacetylenic monomers, which have been subsequently polymerized. The morphology of the surface has been characterized by atomic force and scanning electron...
Uploaded on: March 25, 2023 -
2000 (v1)Publication
We have determined the frequency dispersion of the anisotropic complex optical constants of highly stretchoriented poly~p-phenylene-vinylene! chains from Kramers-Kronig transformation of polarized near-normalincidence absolute reflectivity data, inversion of polarized reflectance and transmittance measurements, and spectroscopic ellipsometry....
Uploaded on: April 14, 2023 -
2002 (v1)Publication
Artificial opal films have been prepared by sedimentation of monodisperse silica spheres in water suspension. Atomic force microscope images show a triangular packing of the spheres at the surface of the films. The presence and the energy position of an optical pseudo gap in incidence-angle-dependent transmittance and reflectance spectra is...
Uploaded on: March 31, 2023