Development of a wavefront sensor for terahertz pulses
BROSSARD, Mathilde
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
New Terahertz Imaging Systems [NeTHIS]
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Laboratoire Ondes et Matière d'Aquitaine [LOMA]
New Terahertz Imaging Systems [NeTHIS]
BROSSARD, Mathilde
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
New Terahertz Imaging Systems [NeTHIS]
< Reduce
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
New Terahertz Imaging Systems [NeTHIS]
Language
en
Article de revue
This item was published in
Optics Express. 2016, vol. 24, n° 5, p. 5203-5211
Optical Society of America - OSA Publishing
English Abstract
Wavefront characterization of terahertz pulses is essential to optimize far-field intensity distribution of time-domain (imaging) spectrometers or increase the peak power of intense terahertz sources. In this paper, we ...Read more >
Wavefront characterization of terahertz pulses is essential to optimize far-field intensity distribution of time-domain (imaging) spectrometers or increase the peak power of intense terahertz sources. In this paper, we report on the wavefront measurement of terahertz pulses using a Hartmann sensor associated with a 2D electro-optic imaging system composed of a ZnTe crystal and a CMOS camera. We quantitatively determined the deformations of planar and converging spherical wavefronts using the modal Zernike reconstruction least-squares method. Associated with deformable mirrors, the sensor will also open the route to terahertz adaptive optics.Read less <
English Keywords
Remote sensing and sensors
Terahertz imaging
Wave propagation
Origin
Hal imported