Search results for "Phase-sensitive field characterization"

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Exact reconstruction of thz sub-λ source features in knife-edge measurements

2013

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.

PhysicsCouplingPhase-sensitive field characterizationBlade (geometry)Terahertz radiationbusiness.industrySettore ING-INF/02 - Campi ElettromagneticiEdge (geometry)Lambdasubwavelength sourceSettore ING-INF/01 - ElettronicaSource fieldAtomic and Molecular Physics and OpticsOpticsSampling (signal processing)subwavelength sourcesspatiotemporal field characterizationElectrical and Electronic EngineeringTime-resolved spectroscopybusinessterahertz (THz) sources
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