Double-track waveguides inside calcium fluoride crystals
Idioma
en
Article de revue
Este ítem está publicado en
Crystals. 2020-02, vol. 10, n° 2, p. 109 (13 p.)
MDPI
Resumen en inglés
Calcium Fluoride (CaF2) was selected owing to its cubic symmetry and excellent luminescence properties as a crystal of interest, and ultrafast laser inscription of in-bulk double-track waveguides was realized. The guiding ...Leer más >
Calcium Fluoride (CaF2) was selected owing to its cubic symmetry and excellent luminescence properties as a crystal of interest, and ultrafast laser inscription of in-bulk double-track waveguides was realized. The guiding properties of these waveguides in relation to the writing energy of the femtosecond pulse are presented. The modified double-track waveguides have been studied by systematic developments of beam propagation experiments and numerical simulations. Furthermore, an adapted model and concepts were engaged for the quantitative and qualitative characterization of the waveguides, particularly for the transmission loss measurements and the three-dimensional refractive index mappings of the modified zones. Additionally, polarization-dependent guiding was investigated.< Leer menos
Palabras clave en inglés
femtosecond lasers
direct laser writing (DLW)
micro-processing
photonic device
cubic crystal
waveguides
double-track
Calcium Fluoride
refractive index change
quantitative phase imaging
Proyecto ANR
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
Orígen
Importado de HalCentros de investigación