| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1495217 | Optical Materials | 2011 | 4 Pages |
The Ba2TiSi2O8 is a well known piezoelectric, ferroelectric and non-linear crystal. Nanocrystals of Ba2TiSi2O8 doped with 1.5 Dy3+ have been obtained by thermal treatment of a precursor glass and their optical properties have been studied. X-ray diffraction patterns and optical measurements have been carried out on the precursor glass and glass ceramic samples. The emission spectra corresponding to the Dy3+: 4F9/2 → 6H13/2 (575 nm), 4F9/2 → 6H11/2 (670 nm) and 4F9/2 → 6H9/2 (757 nm) transitions have been obtained under laser excitation at 473 nm. These measurements confirm the incorporation of the Dy3+ ions into the Ba2TiSi2O8 nanocrystals which produces an enhancement of luminescence at 575 nm. At this wavelength has been demonstrated a maximum optical amplification around 1.9 cm−1 (∼8.2 dB/cm).
Research highlights► The Ba2TiSi2O8 is a piezoelectric, ferroelectric and non-linear crystal. ► Nanocrystals of Ba2TiSi2O8 doped with 1.5 Dy3+ were obtained by thermal treatment. ► A maximum optical amplification around 1.9 cm−1 was found at 575 nm. ► Emission spectra corresponding to the Dy3+ transitions were obtained and studied.
