Title :
Terahertz imaging of sub-wavelength objects via multispectral reconstruction algorithm
Author :
Lee, Kang Hee ; Yi, Minwoo ; Jin, Kyung Hwan ; Ye, Jong Chel ; Ahn, Jaewook
Author_Institution :
Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Abstract :
Smaller objects than Abbe-Rayleigh diffraction limit can be imaged in a THz-TDS system by using a broadband multispectral reconstruction algorithm. We have experimentally studied sub-l resolution THz imaging and show multi-frequency analysis efficiently retrieves sub-l diffraction targets.
Keywords :
electromagnetic wave diffraction; image reconstruction; spectral analysis; terahertz wave imaging; Abbe-Rayleigh diffraction limit; THz imaging; THz-TDS system; broadband multispectral reconstruction algorithm; multifrequency analysis; sub-wavelength objects; terahertz imaging; Diffraction; Frequency; High-resolution imaging; Image analysis; Image reconstruction; Image resolution; Image retrieval; Optical imaging; Optical noise; Reconstruction algorithms;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5325555
