Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Justas Deveikis"'
Publikováno v:
Applied Physics Letters. 122
The spatial profile of a beam of pulsed terahertz (THz) radiation is controlled electrically using a multi-pixel photoconductive emitter, which consists of an array of interdigitated electrodes fabricated on semi-insulating GaAs. Activating individua
Autor:
Justas, Deveikis, James, Lloyd-Hughes
Publikováno v:
Optics Express. 30:43293
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, circumven
Precise and accurate control of the ellipticity of THz radiation using a photoconductive pixel array
Publikováno v:
Applied Physics Letters. 119:121105
Full control of the ellipticity of broadband pulses of THz radiation, from linear to left- or right-handed circular polarization, was demonstrated via a 4-pixel photoconductive emitter with an integrated achromatic waveplate. Excellent polarization p