@inproceedings{26d84e9207994e9fb0027b46f510894a,
title = "A wavefront analyzer for terahertz time-domain spectrometers",
abstract = "We report on the development of a terahertz wavefront sensor able to determine the optical aberrations of a terahertz time-domain spectrometer. The system measures point-by-point the amplitude and phase of the terahertz electric field in a given plane. From this measurement, we reconstruct the terahertz wavefront and calculate its Zernike coefficients. In particular, we especially show that the focus spot of the spectrometer suffers from optical aberrations such as remaining defocus, first and second order astigmatisms, as well as spherical aberration. This opens a route to wavefront correction for improved terahertz imaging and spectroscopy.",
keywords = "Laser beams, Optical imaging, Electric fields, Measurement by laser beam, Ultrafast optics, Adaptive optics",
author = "E. Abraham and M. Brossard and P. Fauche and M. Perrin and Krzysztof Iwaszczuk and Jepsen, {Peter Uhd}",
year = "2017",
doi = "10.1109/IRMMW-THz.2017.8067219",
language = "English",
isbn = "9781509060498",
series = " International Conference on Infrared, Millimeter and Terahertz Waves",
publisher = "IEEE",
pages = "1--1",
booktitle = "Proceedings of the42nd International Conference on Infrared, Millimeter, and Terahertz Waves",
address = "United States",
note = "42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017 ; Conference date: 27-08-2017 Through 01-09-2017",
}