6533b7d6fe1ef96bd1265e18
RESEARCH PRODUCT
Time resolved confocal luminescence investigations on reverse proton exchange Nd : LiNbO3 channel waveguides
E. M. RodríguezStefano Riva SanseverinoAlessandro BusaccaDaniel JaqueE. CantelarF. CussóG. LifanteAlfonso Carmelo Cinosubject
Laser materialsQuenching (fluorescence)Materials scienceLITHIUM-NIOBATE CRYSTALSbusiness.industryFísicaPhysics::Opticschemistry.chemical_elementFluorescence correlation spectroscopyLithium niobateNeodymiumFluorescenceLINBO3Atomic and Molecular Physics and OpticsOpticschemistryFluorescence cross-correlation spectroscopyLaser-induced fluorescenceSpectroscopyLuminescencebusinessdescription
In this work we report on the time and spatial resolved fluorescence of Neodymium ions in LiNbO(3) channel waveguides fabricated by Reverse Proton Exchange. The analysis of the fluorescence decay curves obtained with a sub-micrometric resolution has evidenced the presence of a relevant fluorescence quenching inside the channel waveguide. From the comparison between diffusion simulations and the spatial dependence of the (4)F(3/2) fluorescence decay rate we have concluded that the observed fluorescence quenching can be unequivocally related to the presence of H+ ions in the LiNbO(3) lattice. Nevertheless, it turns out that Reverse Proton Exchange guarantees a fluorescence quenching level significantly lower than in similar configurations based on Proton Exchange waveguides. This fluorescence quenching has been found to be accompanied by a relevant red-shift of the (4)F(3/2)?(4)I(9/2) fluorescence band.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-06-24 |