| 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 |
|
Lee, Michael W.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2010Chalcogenide glass photonic crystalscitations
- 2010Photosensitive and thermal nonlinear effects in chalcogenide photonic crystal cavitiescitations
- 2009Photoinduced high-Q cavities in chalcogenide photonic crystals
- 2009High-Q photonic crystal chalcogenide cavities by photosensitive post processing
- 2009Photowritten high-Q cavities in two-dimensional chalcogenide glass photonic crystalscitations
- 2008Chalcogenide glass photonic crystalscitations
- 2008Characterizing photonic crystal waveguides with an expanded k-space evanescent coupling techniquecitations
- 2008Photo-induced cavities in chalcogenide photonic crystals
- 2007Photosensitive post tuning of chalcogenide photonic crystal waveguidescitations
Places of action
| Organizations | Location | People |
|---|
article
Photosensitive and thermal nonlinear effects in chalcogenide photonic crystal cavities
Abstract
We investigate the photosensitive and thermo-optic nonlinear properties of chalcogenide glass photonic crystal (PhC) cavities at telecommunications wavelengths. We observe a photosensitive refractive index change in AMTIR-1 (Ge<sub>33</sub>As<sub>12</sub>Se<sub>55</sub>) material in the near-infrared, which is enhanced by light localization in the PhC cavity and manifests in a permanent blue-shift of the nanocavity resonance. Thermo-optic non-linear properties are thoroughly investigated by i) carrying out thermal bistable switching experiments, from which we determined thermal switching times of 63μs and 93μs for switch on and switch off respectively and ii) by studying heating of the cavity with a high peak power pulsed laser input, which shows that two-photon absorption is the dominant heating mechanism. Our measurements and analysis highlight the detrimental impact of near-infrared photosensitivity and two-photon absorption on cavity based nonlinear optical switching schemes. We conclude that glass compositions with lower two-photon absorption and more stable properties (reduced photosensitivity) are therefore required for nonlinear applications in chalcogenide photonic crystal cavities.