Title :
Terahertz vector beam generation using segmented nonlinear optical crystals with three-fold rotational symmetry
Author :
Imai, R. ; Kanda, N. ; Konishi, K. ; Kuwata-Gonokami, M.
Author_Institution :
Grad. Sch. of Eng., Univ. of Tokyo, Tokyo, Japan
Abstract :
We demonstrated a new method of Terahertz cylindrical vector beam generation using segmented nonlinear crystals with three-fold rotational symmetry. The polarization dependent in-plane images obtained with a Terahertz camera clearly showed axial-symmetric polarization distributions. The electro-optic sampling image clearly visualized the longitudinal electric field at the focal point.
Keywords :
cameras; electro-optical effects; image sampling; image sensors; light polarisation; microwave photonics; optical materials; optical rotation; terahertz wave detectors; terahertz wave generation; axial-symmetric polarization distributions; electro-optic sampling image; focal point; longitudinal electric field; polarization dependent in-plane images; segmented nonlinear optical crystals; terahertz camera; terahertz vector beam generation; three-fold rotational symmetry; Cameras; Crystals; Educational institutions; Electric fields; Optimized production technology; Time domain analysis; Vectors;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380348
