The concentrations of primary F centres and F2 and F3+ aggregate defects were evaluated as a function of the irradiation dose in broad-band light-emitting single-mode strip waveguides directly written with 12 keV electrons at the surface of a LiF crystal. From a careful best-fit procedure of the optical transmission spectra, measured on microstructures only few tens of micrometers wide, the spectral contributions of several types of colour centres were identified and quantified. This characterization provided useful information for the optimization of these confining microstructures and for the development of waveguide colour centre lasers.
Somma, F., Montereali, R.M., Vincenti, A.M., Bonfigli, F., Montecchi, M., Piccinini, M., et al. (2008). Colour-centre concentrations in broad-band light-emitting strip waveguides in Lithium Fluoride. PHYSICA STATUS SOLIDI. A, APPLIED RESEARCH.
Colour-centre concentrations in broad-band light-emitting strip waveguides in Lithium Fluoride
SOMMA, Fabrizia;
2008-01-01
Abstract
The concentrations of primary F centres and F2 and F3+ aggregate defects were evaluated as a function of the irradiation dose in broad-band light-emitting single-mode strip waveguides directly written with 12 keV electrons at the surface of a LiF crystal. From a careful best-fit procedure of the optical transmission spectra, measured on microstructures only few tens of micrometers wide, the spectral contributions of several types of colour centres were identified and quantified. This characterization provided useful information for the optimization of these confining microstructures and for the development of waveguide colour centre lasers.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
