Development of a wavefront sensor for terahertz pulses

Optics Express
Emmanuel AbrahamTakeshi Yasui

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 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.

References

Jun 11, 2008·Optics Express·Takeshi YasuiTsutomu Araki

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Citations

May 24, 2020·Micromachines·Juan S Totero GongoraMarco Peccianti
Mar 31, 2018·Optics Letters·Mathilde BrossardEmmanuel Abraham
Jul 6, 2021·Biomedical Optics Express·Zhongbo YangHuabin Wang

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