Waveguiding light-emitting strips have been written in a blank LiF crystal with a femtosecond laser, by translating the sample under the pulsed focused beam. Light guiding through these buried micro-structures was observed at several wavelengths between 458 and 1550 nm. Visible photoluminescence spectra of aggregate F2 and F3 + laser active color centers were measured. The refractive index increase, estimated of the order of 10-4 in the visible and near-infrared spectral intervals, is consistent with the stable formation of electronic point defects in LiF. These results are promising for the realization of miniaturized optical waveguiding solid-state amplifiers and lasers based on color centers. © 2014 AEIT.
Titolo: | Advanced characterization of color centers lightemitting waveguides induced in lithium fluoride crystals by femtosecond laser |
Autori: | |
Data di pubblicazione: | 2014 |
Handle: | http://hdl.handle.net/20.500.12079/3854 |
ISBN: | 9788887237177 |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |