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2 results on '"subwavelength sources"'

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

Author

Peccianti, Marco, Clerici, Matteo, Pasquazi, Alessia, Caspani, Lucia, Ho, Sze Phing, Buccheri, Fabrizio, Ali, Jalil, Busacca, Alessandro, Ozaki, Tsuneyuki, and Morandotti, Roberto

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. [ABSTRACT FROM PUBLISHER]

Published
2013
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2. Exact reconstruction of thz sub-λ source features in knife-edge measurements

Author

Alessia Pasquazi, Marco Peccianti, Roberto Morandotti, Sze Phing Ho, Lucia Caspani, Tsuneyuki Ozaki, Jalil Ali, Matteo Clerici, A. C. Busacca, Fabrizio Buccheri, Peccianti, M, Clerici, M, Pasquazi, A, Caspani, L, Ho, SP, Buccheri, F, Ali, J, Busacca, A, Ozaki, T, and Morandotti, R

Subjects
Physics, Coupling, Phase-sensitive field characterization, Blade (geometry), Terahertz radiation, business.industry, Settore ING-INF/02 - Campi Elettromagnetici, Edge (geometry), Lambda, subwavelength source, Settore ING-INF/01 - Elettronica, Source field, Atomic and Molecular Physics, and Optics, Optics, Sampling (signal processing), subwavelength sources, spatiotemporal field characterization, Electrical and Electronic Engineering, Time-resolved spectroscopy, business, terahertz (THz) sources
Abstract

The spatial features of a sub-wavelength terahertz source are not accessible using time-integrated knife-edge techniques due to the non-separable space-time nature of the radiated field and to systematic modifications induced by the blade itself. We show that combining knife-edge with a time resolved electro-optical sampling, the space-time coupling can be addressed and the source field profile can be exactly reconstructed.

Published
2013

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