Radially polarized beams represent an important member of the family of vector beams, in
particular due to the possibility of using them to create strong and tightly focused longitudinal …

We measure the Gouy phase anomaly for matter waves using in-line holography to retrieve
the full complex field of an astigmatic electron wave function. Sequential phase shifts of π/2 …

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 …

Three dimensional information of the Gouy phase shift in a converging spherical terahertz
(THz) beam is directly observed by using a THz balanced electro-optic holographic imaging …

Gouy phase is the axial phase anomaly of converging light waves discovered over one
century ago, and is so far widely studied in various systems. In this work, we have …

We show that, when large-area multiplex terahertz semiconductor emitters, that work on
diffusion currents and Schottky potentials, are illuminated by ultrashort optical pulses they …

Terahertz time-domain spectroscopy probes anomalous phase-shift caused by wave
diffraction from a subwavelength-scale metal slit or aperture. Carrier frequency phase …

We report that the interference pattern of Young's double-slit experiment changes as a
function of polarization in the sub-wavelength diffraction regime. Experiments carried out …

Résumé Par sa symétrie singulière, une impulsion laser de polarisation radiale de type TM
0, 1 a la particularité de développer un important champ électrique longitudinal, soit une …

Time-domain spectroscopy is used to probe the polarization dependence of the terahertz-
frequency absorption of α-lactose molecules in the near-field vicinity of a sub-wavelength …