Title :
Terahertz digital off-axis holography for non-destructive testing
Author :
Heimbeck, Martin S. ; Kim, Myung K. ; Gregory, Don A. ; Everitt, Henry O.
Author_Institution :
US Army Aviation & Missile RD&E Center, Redstone Arsenal, AL, USA
Abstract :
Terahertz digital off-axis holography is demonstrated with a highly coherent, frequency tunable continuous wave terahertz source emitting between 0.1 and 0.8 THz and a single spatially-scanned Schottky diode detector. The angular spectrum and dual wavelength reconstruction methods are employed for the digital reconstruction process.
Keywords :
Schottky diodes; holographic interferometry; nondestructive testing; temperature sensors; terahertz wave imaging; angular spectrum; digital reconstruction process; dual wavelength reconstruction; frequency 0.1 THz to 0.8 THz; frequency tunable continuous wave terahertz source; nondestructive testing; room temperature detectors; single spatially-scanned Schottky diode detector; terahertz digital off-axis holography; Detectors; Holography; Image reconstruction; Interference; Optics; Reconstruction algorithms;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105090
