Title :
Telecentric f-theta Lens for high-speed terahertz reflection three-dimensional imaging
Author :
Kyong Hwan Jin ; Ji Sang Yahng ; Choon-Su Park ; Ho-Soon Yang ; Chi Yup Kim ; Jong Chul Ye ; Dae-Su Yee
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
High-speed terahertz reflection three-dimensional imaging is demonstrated using electronically controlled optical sampling (ECOPS) and beam steering. The ECOPS is used for a 1 kHz axial scan and a transverse scan is performed using beam steering. Telecentric f-theta lenses essential for beam steering have been fabricated with axial and nonaxial symmetry. Using the imaging system, a volume of 100 × 100 × 7.8 mm3 can be scanned within 40 seconds, yielding 200 × 200 × 725 voxels.
Keywords :
beam steering; electromagnetic wave reflection; lenses; terahertz wave imaging; ECOPS; axial symmetry; beam steering; electronically controlled optical sampling; high-speed terahertz reflection three-dimensional imaging; nonaxial symmetry; telecentric F-theta lens; Beam steering; High-speed optical techniques; Lenses; Optical imaging; Optical reflection;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956093
