Multi-pixel photoconductive emitters for the controllable generation of azimuthal and radial terahertz beams.
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DOI: 10.1364/oe.473086
Abstract: A multi-pixel photoconductive emitter is reported that generates THz beams with either azimuthal, radial or linear polarization states. Switching between the different polarization states was purely electrical, via the bias voltage applied, circumventing the need… read more here.
Keywords: pixel photoconductive; photoconductive emitters; optics; azimuthal radial ... See more keywords