| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Chiodini, N.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2021Influence of the fiber drawing process on mechanical and vibrational properties of sol-gel silica glasscitations
- 2020Trapping mechanisms and delayed scintillation processes in Ce-doped sol-gel silica fibers
- 2018Radiation hardness of Ce-doped sol-gel silica fibers for high energy physics applicationscitations
- 2018Dual response of RE-doped sol-gel silica fibers to high energy electrons
- 2017Optical properties and radiation hardness of Pr-doped sol-gel silica : influence of fiber drawing processcitations
- 2014Recent progresses in scintillating doped silica fiber opticscitations
- 2011Incorporation of Ce.sup.3+./sup. in crystalline Gd-silicate nanoclusters formed in silica
- 2003Optical spectroscopy of erbium and thulium doped SnO 2 :SiO 2 glass ceramics
- 2002Erbium doped nanostructured tin-silicate glass-ceramic compositescitations
- 2002Nonlinearity in poled tin-doped silica samples fabricated by sol-gel technique
- 2001Vacuum ultraviolet absorption spectrum of photorefractive Sn-doped silica fiber preformscitations
- 2000Photoinduced processes in Sn-doped silica fiber-preformscitations
- 2000Vacuum ultra-violet absorption spectrum of photorefractive Sn-doped silica fiber preforms
Places of action
| Organizations | Location | People |
|---|
conferencepaper
Nonlinearity in poled tin-doped silica samples fabricated by sol-gel technique
Abstract
Since its first proposal quasi-phase-matching (QPM) has been implemented in many materials to achieve efficient second-order nonlinear optical interactions. QPM provides flexibility and new possibilities for phase-matching, especially in materials where the birefringence is not high enough to compensate for the dispersion. Periodic poling of silica fibres exploits the potential of the QPM technology to extend the possibility of efficient frequency conversion to materials which have a widespread use in optical applications and offers several advantages. Thermal poling is the most reliable technique in terms of reproducibility and long-term stability of the induced nonlinearity. In this paper we present the results on induced nonlinearity we have achieved with thermal poling in two tin-doped silica samples fabricated by sol-gel technique [1]. The tin-content was estimated to be ~1.2 and 6%w/w. While the sample with lower Sn concentration appeared to be a glass, in the sample at high concentration, SnO2 segregated to give a glass ceramic. The second-order optical nonlinearity induced in glass by poling has been evaluated through a Maker fringe technique [2]. The second harmonic signal recorded for the poled samples is shown in figure 1. Data were fitted with d33 as free parameter. Assuming a nonlinear thickness of 5µm in the tin-doped samples, d33 is found to be ~0.20pm/V. The results confirm the good non-linearity of silica-based poled material prepared by sol-gel, whereas no relevant effects can be ascribed to the different phases of the SnO2 dopant at the indicated poling conditions. <br/><br/>Figure 1: Second harmonic signal (I2omega) as a function of the incident angle theta, for the poled glass-ceramic sample ([SnO2]~6%). The line represents the best fit achieved with d33=0.2026 pm/V.