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Exact Reconstruction of THz Sub- \lambda Source Features in Knife-Edge Measurements

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10 Author(s)
Marco Peccianti ; Institute for Complex Systems , National Research Center (CNR), Rome, Italy ; Matteo Clerici ; Alessia Pasquazi ; Lucia Caspani
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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.

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IEEE Journal of Selected Topics in Quantum Electronics  (Volume:19 ,  Issue: 1 )