Zobrazeno 1 - 10
of 537
pro vyhledávání: '"Boscaino, R."'
We studied the reflectivity spectra of amorphous silicon dioxide detected under vacuum UV synchrotron radiation as a function of temperature between 10 and 300 K. Kramers-Kronig dispersion analysis of reflectivity spectra allowed us to determine the
Externí odkaz:
http://arxiv.org/abs/1009.3873
Publikováno v:
Physical Review B, Vol. 77, Number 15, Pages 155214 1-5, Year 2008
We report a combined study by optical absorption (OA) and electron paramagnetic resonance (EPR) spectroscopy on the E'-alpha point defect in amorphous silicon dioxide (a-SiO2). This defect has been studied in beta-ray irradiated and thermally treated
Externí odkaz:
http://arxiv.org/abs/0805.2076
Publikováno v:
J. Non-Cryst. Solids 353, 670 (2007)
The photo-luminescence features of Ge-oxygen defect centers in a 100nm thick Ge-doped silica film on a pure silica substrate were investigated by looking at the emission spectra and time decay detected under synchrotron radiation excitation in the 10
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703062
Publikováno v:
Phys. stat . sol. (C) 4 (2007) 1143
We studied the optical absorption induced by 4.7eV pulsed laser radiation on Ge-doped a-SiO2 synthesized by a sol-gel technique. The absorption spectra in the ultraviolet spectral range were measured during and after the end of irradiation with an in
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703065
Publikováno v:
phys status solidi (c) 2, 616 (2005)
Diffusion limited reactions of point defects were investigated in amorphous SiO2 exposed to UV laser light. Electron spin resonance and in situ absorption measurements at room temperature evidenced the annealing of E' centers and the growth of H(II)
Externí odkaz:
http://arxiv.org/abs/cond-mat/0410668
Publikováno v:
J. Non-Cryst. Solids 351, 2005, 1770
We investigated the kinetics of H(II) centers (=Ge'-H) in natural silica under repeated 266nm UV irradiations performed by a Nd:YAG pulsed laser. UV photons temporarily destroy these paramagnetic defects, their reduction being complete within 250 pul
Externí odkaz:
http://arxiv.org/abs/cond-mat/0410584
We study experimentally the dynamical and decay properties of the Stimulated Nutation Echo (SNE) in a two-level spin system. This is the signal which appears in the transient response of the system to the second pulse at time tau_1 elapsed from its b
Externí odkaz:
http://arxiv.org/abs/physics/0203039
We report experimental evidence of the existence of two variants of the E' gamma centers induced in silica by gamma rays at room temperature. The two variants are distinguishable by the fine features of their line shapes in paramagnetic resonance spe
Externí odkaz:
http://arxiv.org/abs/cond-mat/0203280
Autor:
Buscarino, G., Melodia, E.G., Alessi, A., Iovino, G., Parlato, A., Agnello, S., Cannas, M., Gelardi, F.M., Boscaino, R.
Publikováno v:
In Journal of Non-Crystalline Solids 1 December 2014 405:116-123
Publikováno v:
In Journal of Non-Crystalline Solids 1 February 2013 361:9-12