Ahmed Khalil
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Ahmed Khalil has a total of 16 co-authors. Here are the top co-authors by number of shared publications:
- Andries Boelen
Imec 1 , Kapeldreef 75, B-3001 Leuven
1 shared publication - Anja Ulrich
Imec 1 , Kapeldreef 75, B-3001 Leuven
1 shared publication Bart Kuyken
IMEC, Leuven, Belgium
1 shared publication- Christian Haffner
Imec 1 , Kapeldreef 75, B-3001 Leuven
1 shared publication - Clement Merckling
Department of Materials Engineering, KU Leuven 1 , Kasteelpark Arenberg 44, 3001 Leuven
1 shared publication Conglin Sun
IMEC, Leuven, Belgium
1 shared publication
Latest Publications
- 23 October 2025
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 390 (6771) , 390-393
Engineering high Pockels coefficients in thin-film strontium titanate for cryogenic quantum electro-optic applications
Pockels materials are notable for their strong electro-optic interaction and rapid response times and are therefore used extensively in optical communications. However, at cryogenic temperatures, Pockels coefficients are reduced in many materials optimized for room-temperature operation, which is a major hurdle for emerging quantum technologies. Here, we show that strontium titanate (SrTiO 3 ) can be engineered to exhibit a Pockels coefficient of 345 picometers per volt at 20 hertz at cryogenic temperatures, a value twice as high as any other thin-film electro-optic material. By adjusting the stoichiometry, we were able to increase the Curie temperature and realize a ferroelectric phase yielding a high Pockels coefficient, so far with limited optical losses of decibels per centimeter. Our findings position SrTiO 3 as a promising material for cryogenic quantum photonics applications.
- 23 October 2025
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 390 (6771) , 390-393
Engineering high Pockels coefficients in thin-film strontium titanate for cryogenic quantum electro-optic applications
Pockels materials are notable for their strong electro-optic interaction and rapid response times and are therefore used extensively in optical communications. However, at cryogenic temperatures, Pockels coefficients are reduced in many materials optimized for room-temperature operation, which is a major hurdle for emerging quantum technologies. Here, we show that strontium titanate (SrTiO 3 ) can be engineered to exhibit a Pockels coefficient of 345 picometers per volt at 20 hertz at cryogenic temperatures, a value twice as high as any other thin-film electro-optic material. By adjusting the stoichiometry, we were able to increase the Curie temperature and realize a ferroelectric phase yielding a high Pockels coefficient, so far with limited optical losses of decibels per centimeter. Our findings position SrTiO 3 as a promising material for cryogenic quantum photonics applications.