Guiramand, L., Lafrenière-Greig, J., Ropagnol, X. et Blanchard, F..
2024.
« Near-field terahertz electro-optical imaging based on a polarization image sensor ».
New Journal of Physics, vol. 26, nº 10.
Prévisualisation |
PDF
Blanchard-F-2024-29783.pdf - Version publiée Licence d'utilisation : Creative Commons CC BY. Télécharger (3MB) | Prévisualisation |
Résumé
This paper presents a hyperspectral microscopy system that offers two-dimensional (2D) measurement of the spectral phase and amplitude information of terahertz (THz) radiation without the need for raster scanning. To achieve this, a new THz imaging method is introduced, wherein the distribution of the THz electric field is spatially measured using the electro-optic effect with a commercial polarization image sensor. This method enables the direct measurement of polarization components, eliminating the need for the polarization optics usually required in conventional electro-optical imaging. The performance of this imaging method is compared with a conventional 2D imaging system based on a standard visible camera. Finally, the sub-wavelength resolution capabilities of this new sensor are demonstrated by imaging a sample in the near field.
| Type de document: | Article publié dans une revue, révisé par les pairs |
|---|---|
| Professeur: | Professeur Blanchard, François |
| Affiliation: | Génie électrique |
| Date de dépôt: | 05 nov. 2024 19:40 |
| Dernière modification: | 07 nov. 2024 20:19 |
| URI: | https://espace2.etsmtl.ca/id/eprint/29783 |
Actions (Authentification requise)
 |
Dernière vérification avant le dépôt |