Laboratoire d'Optique Appliqée (LOA)
@labooptappl.bsky.social
The LOA in Palaiseau, France. Part of IP-Paris, and uniting researchers from ENSTA, Ecole Polytechnique, and CNRS.
Shooting intense lasers since 1972.
loa.ensta.fr
Shooting intense lasers since 1972.
loa.ensta.fr
Looking for an M2 internship?
Most of our offers are on our website here:
loa.ensta-paris.fr/join-us/
Lots of experiments on some of the planet's coolest lasers, and lots of numerical simulations!
Most of our offers are on our website here:
loa.ensta-paris.fr/join-us/
Lots of experiments on some of the planet's coolest lasers, and lots of numerical simulations!
October 28, 2025 at 10:57 AM
Looking for an M2 internship?
Most of our offers are on our website here:
loa.ensta-paris.fr/join-us/
Lots of experiments on some of the planet's coolest lasers, and lots of numerical simulations!
Most of our offers are on our website here:
loa.ensta-paris.fr/join-us/
Lots of experiments on some of the planet's coolest lasers, and lots of numerical simulations!
La fête de la science commence à l'Ecole @polytechniqueparis.bsky.social et continue demain.
Venez demain le 04/10 visiter au LOA un laboratoire où nous accelerons des électrons par laser à >99,99% de la vitesse de la lumière, et où nous développons des applications médicales. A demain !
#fds2025
Venez demain le 04/10 visiter au LOA un laboratoire où nous accelerons des électrons par laser à >99,99% de la vitesse de la lumière, et où nous développons des applications médicales. A demain !
#fds2025
October 3, 2025 at 11:41 AM
La fête de la science commence à l'Ecole @polytechniqueparis.bsky.social et continue demain.
Venez demain le 04/10 visiter au LOA un laboratoire où nous accelerons des électrons par laser à >99,99% de la vitesse de la lumière, et où nous développons des applications médicales. A demain !
#fds2025
Venez demain le 04/10 visiter au LOA un laboratoire où nous accelerons des électrons par laser à >99,99% de la vitesse de la lumière, et où nous développons des applications médicales. A demain !
#fds2025
Boosting the energy and beam quality of laser-wakefield accelerated electrons with a plasma waveguide, first demonstrated at LOA in 2022 (www.nature.com/articles/s41...) has also worked at the APOLLON laser. We generated quasi-monoenergetic beams beyond 2 GeV !
loa.ensta-paris.fr/2025/09/30/q...
loa.ensta-paris.fr/2025/09/30/q...
September 30, 2025 at 1:42 PM
Boosting the energy and beam quality of laser-wakefield accelerated electrons with a plasma waveguide, first demonstrated at LOA in 2022 (www.nature.com/articles/s41...) has also worked at the APOLLON laser. We generated quasi-monoenergetic beams beyond 2 GeV !
loa.ensta-paris.fr/2025/09/30/q...
loa.ensta-paris.fr/2025/09/30/q...
Every couple of years we move the whole lab for a few days away from the daily grind in Palaiseau to some beautiful location.
For the LOA Days 2025, we went to the magnificent island of Porquerolles!
loa.ensta-paris.fr/2025/09/30/t...
For the LOA Days 2025, we went to the magnificent island of Porquerolles!
loa.ensta-paris.fr/2025/09/30/t...
September 30, 2025 at 1:25 PM
Every couple of years we move the whole lab for a few days away from the daily grind in Palaiseau to some beautiful location.
For the LOA Days 2025, we went to the magnificent island of Porquerolles!
loa.ensta-paris.fr/2025/09/30/t...
For the LOA Days 2025, we went to the magnificent island of Porquerolles!
loa.ensta-paris.fr/2025/09/30/t...
Antoine Cavagna is defending his PhD thesis today at LOA!
September 5, 2025 at 12:50 PM
Antoine Cavagna is defending his PhD thesis today at LOA!
And she's made it: bravo docteure Juliette Dubois 👏🏻🥂!
April 29, 2025 at 2:51 PM
And she's made it: bravo docteure Juliette Dubois 👏🏻🥂!
Juliette Dubois is defending her PhD thesis today!
April 29, 2025 at 12:37 PM
Juliette Dubois is defending her PhD thesis today!
Go Amélie !
April 2, 2025 at 5:03 PM
Go Amélie !
We were happy to receive Prof. Donna Strickland's visit today and show her around a few of our labs.
Absolutely everything at LOA runs thanks to her (and our former colleague Gerard Mourou's) Nobel-prize-decorated Chirped-pulse-amplification!
Absolutely everything at LOA runs thanks to her (and our former colleague Gerard Mourou's) Nobel-prize-decorated Chirped-pulse-amplification!
December 18, 2024 at 7:41 PM
We were happy to receive Prof. Donna Strickland's visit today and show her around a few of our labs.
Absolutely everything at LOA runs thanks to her (and our former colleague Gerard Mourou's) Nobel-prize-decorated Chirped-pulse-amplification!
Absolutely everything at LOA runs thanks to her (and our former colleague Gerard Mourou's) Nobel-prize-decorated Chirped-pulse-amplification!
IMPALA, the method retrieving multi-spectral wavefronts from measured speckle patterns, co-developed and first demonstrated at LOA, is highlighted in the December issue of @opnmagazine.bsky.social:
www.optica-opn.org/home/article...
www.optica-opn.org/home/article...
December 3, 2024 at 1:54 PM
IMPALA, the method retrieving multi-spectral wavefronts from measured speckle patterns, co-developed and first demonstrated at LOA, is highlighted in the December issue of @opnmagazine.bsky.social:
www.optica-opn.org/home/article...
www.optica-opn.org/home/article...
This wonderful Macaron has been home-baked and laser engraved with an LOA logo by one of our brilliant PhD candidates.
This is the kind of rich skill set you develop during a thesis at LOA!
It tastes really good, too.
This is the kind of rich skill set you develop during a thesis at LOA!
It tastes really good, too.
November 29, 2024 at 12:36 PM
This wonderful Macaron has been home-baked and laser engraved with an LOA logo by one of our brilliant PhD candidates.
This is the kind of rich skill set you develop during a thesis at LOA!
It tastes really good, too.
This is the kind of rich skill set you develop during a thesis at LOA!
It tastes really good, too.
New doctor! Dr Yuliia Mankovska
November 27, 2024 at 2:54 PM
New doctor! Dr Yuliia Mankovska
Today at LOA, Yuliia Mankovska defends her PhD thesis "High-precision probing of Laser-Plasma and electron beam-plasma interactions".
November 27, 2024 at 1:03 PM
Today at LOA, Yuliia Mankovska defends her PhD thesis "High-precision probing of Laser-Plasma and electron beam-plasma interactions".
The snow has stayed over night!
November 22, 2024 at 8:47 AM
The snow has stayed over night!
❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️
LOA got covered in snow today!
❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️
LOA got covered in snow today!
❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️
November 21, 2024 at 4:31 PM
❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️
LOA got covered in snow today!
❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️
LOA got covered in snow today!
❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️❄️
Hydrogen-gas improves the performance of a laser-plasma accelerator:
we now have, at 1-kHz rep.-rate, a quasi-monoenergetic electron beam reaching up to 10 MeV, with a 15-mrad divergence and 2 pC of charge per pulse!
loa.ensta-paris.fr/2024/11/19/h...
Published in: doi.org/10.1103/Phys...
we now have, at 1-kHz rep.-rate, a quasi-monoenergetic electron beam reaching up to 10 MeV, with a 15-mrad divergence and 2 pC of charge per pulse!
loa.ensta-paris.fr/2024/11/19/h...
Published in: doi.org/10.1103/Phys...
November 19, 2024 at 7:55 PM
Hydrogen-gas improves the performance of a laser-plasma accelerator:
we now have, at 1-kHz rep.-rate, a quasi-monoenergetic electron beam reaching up to 10 MeV, with a 15-mrad divergence and 2 pC of charge per pulse!
loa.ensta-paris.fr/2024/11/19/h...
Published in: doi.org/10.1103/Phys...
we now have, at 1-kHz rep.-rate, a quasi-monoenergetic electron beam reaching up to 10 MeV, with a 15-mrad divergence and 2 pC of charge per pulse!
loa.ensta-paris.fr/2024/11/19/h...
Published in: doi.org/10.1103/Phys...
LOA's QUANTUM group, with @kittenstate.bsky.social as lead author, have ou published a Phy.Rev.X Quantum-paper, proving high-harmonic-generatio to produce non-classical light states.
loa.ensta-paris.fr/2024/11/12/e...
doi.org/10.1103/PRXQ...
loa.ensta-paris.fr/2024/11/12/e...
doi.org/10.1103/PRXQ...
November 12, 2024 at 10:19 AM
LOA's QUANTUM group, with @kittenstate.bsky.social as lead author, have ou published a Phy.Rev.X Quantum-paper, proving high-harmonic-generatio to produce non-classical light states.
loa.ensta-paris.fr/2024/11/12/e...
doi.org/10.1103/PRXQ...
loa.ensta-paris.fr/2024/11/12/e...
doi.org/10.1103/PRXQ...
LOA has created a new research group, called QUANTUM !
Check them out here:
loa.ensta-paris.fr/research/ult...
Check them out here:
loa.ensta-paris.fr/research/ult...
October 2, 2024 at 12:57 PM
LOA has created a new research group, called QUANTUM !
Check them out here:
loa.ensta-paris.fr/research/ult...
Check them out here:
loa.ensta-paris.fr/research/ult...
LOA has a new doctor:
Dr. Silin Fu has just defended his thesis!
Dr. Silin Fu has just defended his thesis!
September 25, 2024 at 2:10 PM
LOA has a new doctor:
Dr. Silin Fu has just defended his thesis!
Dr. Silin Fu has just defended his thesis!
Lucas Rovige has been awarded the
2024 PhD research award by the Plasma Physics Division of the European Physical Society (EPS)
for his thesis
“Optimization, stabilization and optical phase control of a high-repetition rate laser-wakefield accelerator”.
Bravo!
loa.ensta-paris.fr/2024/09/03/2...
2024 PhD research award by the Plasma Physics Division of the European Physical Society (EPS)
for his thesis
“Optimization, stabilization and optical phase control of a high-repetition rate laser-wakefield accelerator”.
Bravo!
loa.ensta-paris.fr/2024/09/03/2...
September 3, 2024 at 9:54 AM
Lucas Rovige has been awarded the
2024 PhD research award by the Plasma Physics Division of the European Physical Society (EPS)
for his thesis
“Optimization, stabilization and optical phase control of a high-repetition rate laser-wakefield accelerator”.
Bravo!
loa.ensta-paris.fr/2024/09/03/2...
2024 PhD research award by the Plasma Physics Division of the European Physical Society (EPS)
for his thesis
“Optimization, stabilization and optical phase control of a high-repetition rate laser-wakefield accelerator”.
Bravo!
loa.ensta-paris.fr/2024/09/03/2...
In a new paper in Appl. Phys. Lett., we show how laser-filaments can be extended by a specially designed multifocal phase mask, and guide electric discharges over 2-3 times longer distances.
loa.ensta-paris.fr/2024/09/03/e...
doi.org/10.1063/5.02...
loa.ensta-paris.fr/2024/09/03/e...
doi.org/10.1063/5.02...
September 3, 2024 at 9:11 AM
In a new paper in Appl. Phys. Lett., we show how laser-filaments can be extended by a specially designed multifocal phase mask, and guide electric discharges over 2-3 times longer distances.
loa.ensta-paris.fr/2024/09/03/e...
doi.org/10.1063/5.02...
loa.ensta-paris.fr/2024/09/03/e...
doi.org/10.1063/5.02...
We made the crucial step from merely observing the effects of the ultra-intense laser waveforms on their interaction with plasma mirrors to actually *controlling* them:
"Lightwave-controlled relativistic plasma mirrors",
out in Opt. Lett.: doi.org/10.1364/OL.5...
loa.ensta-paris.fr/2024/09/03/l...
"Lightwave-controlled relativistic plasma mirrors",
out in Opt. Lett.: doi.org/10.1364/OL.5...
loa.ensta-paris.fr/2024/09/03/l...
September 3, 2024 at 8:16 AM
We made the crucial step from merely observing the effects of the ultra-intense laser waveforms on their interaction with plasma mirrors to actually *controlling* them:
"Lightwave-controlled relativistic plasma mirrors",
out in Opt. Lett.: doi.org/10.1364/OL.5...
loa.ensta-paris.fr/2024/09/03/l...
"Lightwave-controlled relativistic plasma mirrors",
out in Opt. Lett.: doi.org/10.1364/OL.5...
loa.ensta-paris.fr/2024/09/03/l...
Pablo San-Miguel-Claveria receives the René Pellat thesis prize of the French Physical Society's (SFP) plasma division.
Congratulations Pablo!
Congratulations Pablo!
March 4, 2024 at 10:46 AM
Pablo San-Miguel-Claveria receives the René Pellat thesis prize of the French Physical Society's (SFP) plasma division.
Congratulations Pablo!
Congratulations Pablo!
Photoshoot with the PCO group in Salle Noire 2.0
March 4, 2024 at 10:40 AM
Photoshoot with the PCO group in Salle Noire 2.0