Exact reconstruction of thz Sub-λ source features in knife-edge measurements
- Autori: Peccianti, M.; Clerici, M.; Pasquazi, A.; Caspani, L.; Ho, S.; Buccheri, F.; Ali, J.; Busacca, A.; Ozaki, T.; Morandotti, R.
- Anno di pubblicazione: 2013
- Tipologia: Articolo in rivista (Articolo in rivista)
- OA Link: http://hdl.handle.net/10447/76449
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.