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]
< Leer menos
Laboratoire d'Astrophysique de Marseille [LAM]
DOTA, ONERA [Salon-de-Provence]
Idioma
en
Article de revue
Este ítem está publicado en
Optics Letters. 2018, vol. 43, n° 7, p. 1594-1597
Optical Society of America - OSA Publishing
Resumen en inglés
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 ...Leer más >
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.< Leer menos
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