0000000000984668

AUTHOR

J. Lusakowski

showing 2 related works from this author

Asymmetric transmission of transverse magnetic or radially polarized THZ waves through sub-wavelength gratings

2015

We have developed a metallic double circular grating with sub-wavelength slits which blocks radially polarized light incident from one of its sides and acts as a focusing diffractive element in the other direction. The proposed grating has been optimized for the sub-THz frequency range. Unidirectional transmission through the grating has been demonstrated experimentally at 0.1 THz. We have also developed a planar metallic double grating with sub-wavelength slits which blocks light with a transverse magnetic polarization incident from one of the grating sides and transmits radiation incident from the opposite direction into the +1 and −1 diffraction orders. These gratings which could be used…

DiffractionPhysicsbusiness.industryTerahertz radiationPhysics::OpticsElectromagnetically induced gratingGratingPolarization (waves)Diffraction efficiencylaw.inventionUltrasonic gratingOpticslawBlazed gratingOptoelectronicsbusiness2015 17th International Conference on Transparent Optical Networks (ICTON)
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Broadband asymmetric transmission of THz radiation through double metallic gratings

2013

We analyse numerically and experimentally the asymmetric transmission through sub-wavelength double metallic gratings. The possibility of achieving a broadband unidirectional transmission of THz waves through the grating is confirmed. The proposed gratings allow for efficient one-way transmission in the wavelength range from 2.5 to 3.5 mm.

Materials sciencebusiness.industryWavelength rangeTerahertz radiationPhysics::OpticsGratingOpticsTransmission (telecommunications)Thz radiationThz wavesBroadbandOptoelectronicsPhysics::Atomic PhysicsbusinessDiffraction grating2013 15th International Conference on Transparent Optical Networks (ICTON)
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