Generation of Emission Centers for Broadband NIR Luminescence in Bismuthate Glass by Femtosecond Laser Irradiation
نویسندگان
چکیده
منابع مشابه
Thermal poling of glass modified by femtosecond laser irradiation
Thermal poling of silica glass modified by femtosecond laser irradiation is demonstrated. Increase of second-harmonic generation in the irradiated regions is observed. This enhancement is interpreted in terms of structural modifications in silica glass that make the poling process more efficient. Evidence of a change in the distribution of the electrostatic field frozen in glass during poling i...
متن کاملUpconversion luminescence from 2E state of Cr3+ in Al2O3 crystal by infrared femtosecond laser irradiation.
Visible upconversion luminescence was observed in Cr3+: Al2O3 crystal under focused femtosecond laser irradiation. The luminescence spectra show that the upconversion luminescence originates from the 2E-4A2 transition of Cr3+. The dependence of the fluorescence intensity of Cr3+ on the pump power reveals that a two-photon absorption process dominates in the conversion of infrared radiation to t...
متن کاملSimultaneous three-photon-excited violet upconversion luminescence of Ce3+:Lu2Si2O7 single crystals by femtosecond laser irradiation.
We found that Ce3+:Lu2Si2O7 single crystals could be excited at 800 nm by using a femtosecond Ti:sapphire laser. The emission spectra of Ce3+:Lu2Si2O7 crystals were the same for one-photon excitation at 267 nm as for excitation at 800 nm. The emission intensity of Ce3+:Lu2Si2O7 crystals was found to depend on the cube of the laser power at 800 nm, consistent with simultaneous absorption of thre...
متن کاملFemtosecond-laser Nanostructuring in Glass
We demonstrate the polarization-dependent anisotropy of the laser induced nanostructures inside SiO2 and GeO2 glass. Such nanostructures show form birefringence which is controllable by the femtosecond double-pulse configuration. In the case of SiO2 glass, we have also demonstrate polarization imaging filter based on the linear dichroism for the visible light ranging from 400 to 800 nm. While, ...
متن کاملContribution to Nano or Micro Crystallization induction in Silica-based Glass by Femtosecond laser Irradiation
Femtosecond laser processing in transparent materials is promising owing to the accessible control of energy deposition in time and in space. In this regime, it opens fantastic opportunities to manufacture novel multifunctional composite materials by manipulating the size, shape and orientation of nonlinear crystals with intrinsic symmetry embedded in glasses. This dissertation mainly contribut...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the American Ceramic Society
سال: 2009
ISSN: 0002-7820,1551-2916
DOI: 10.1111/j.1551-2916.2008.02909.x