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

fYear

2012

fDate

23-28 Sept. 2012

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on

Conference_Location

Wollongong, NSW

ISSN

2162-2027

Print_ISBN

978-1-4673-1598-2

Electronic_ISBN

2162-2027

Type

conf

DOI

10.1109/IRMMW-THz.2012.6380348

Filename

6380348