DocumentCode :
24973
Title :
Exact Reconstruction of THz Sub- 
Source Features in Knife-Edge Measurements
Author :
Peccianti, Marco ; Clerici, Matteo ; Pasquazi, Alessia ; Caspani, Lucia ; Sze Phing Ho ; Buccheri, F. ; Ali, Jalil ; Busacca, A. ; Ozaki, Takashi ; Morandotti, Roberto
Author_Institution :
Inst. for Complex Syst., Rome, Italy
Volume :
19
Issue :
1
fYear :
2013
fDate :
Jan.-Feb. 2013
Firstpage :
8401211
Lastpage :
8401211
Abstract :
The spatial features of a subwavelength terahertz source are not accessible using time-integrated knife-edge (KE) techniques due to the nonseparable space-time nature of the radiated field and to systematic modifications induced by the blade itself. We show that by combining KE with a time-resolved electro-optical sampling, the space-time coupling can be addressed and the source field profile can be exactly reconstructed.
Keywords :
blades; electro-optical effects; spatial variables measurement; terahertz wave imaging; time resolved spectroscopy; blade; knife edge measurement; radiated field; space-time coupling; subwavelength terahertz source feature reconstruction; time resolved electrooptical sampling; Blades; Electric fields; Nonlinear optics; Optical imaging; Optical polarization; Spatiotemporal phenomena; Phase-sensitive field characterization; spatiotemporal field characterization; subwavelength sources; terahertz (THz) sources;
fLanguage :
English
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
1077-260X
Type :
jour
DOI :
10.1109/JSTQE.2012.2209176
Filename :
6242376
Link To Document :
