Terahertz adaptive optics with a deformable mirror
BROSSARD, Mathilde
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
New Terahertz Imaging Systems [NeTHIS]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
New Terahertz Imaging Systems [NeTHIS]
SAUVAGE, Jean-François
Laboratoire d'Astrophysique de Marseille [LAM]
DOTA, ONERA [Salon-de-Provence]
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Laboratoire d'Astrophysique de Marseille [LAM]
DOTA, ONERA [Salon-de-Provence]
BROSSARD, Mathilde
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
New Terahertz Imaging Systems [NeTHIS]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
New Terahertz Imaging Systems [NeTHIS]
SAUVAGE, Jean-François
Laboratoire d'Astrophysique de Marseille [LAM]
DOTA, ONERA [Salon-de-Provence]
< Reduce
Laboratoire d'Astrophysique de Marseille [LAM]
DOTA, ONERA [Salon-de-Provence]
Language
en
Article de revue
This item was published in
Optics Letters. 2018, vol. 43, n° 7, p. 1594-1597
Optical Society of America - OSA Publishing
English Abstract
We report on the wavefront correction of a terahertz (THz) beam using adaptive optics, which requires both a wavefront sensor that is able to sense the optical aberrations, as well as a wavefront corrector. The wavefront ...Read more >
We report on the wavefront correction of a terahertz (THz) beam using adaptive optics, which requires both a wavefront sensor that is able to sense the optical aberrations, as well as a wavefront corrector. The wavefront sensor relies on a direct 2D electro-optic imaging system composed of a ZnTe crystal and a CMOS camera. By measuring the phase variation of the THz electric field in the crystal, we were able to minimize the geometrical aberrations of the beam, thanks to the action of a deformable mirror. This phase control will open the route to THz adaptive optics in order to optimize the THz beam quality for both practical and fundamental applications.Read less <
Origin
Hal imported