1,721,260 research outputs found
Discerning intrinsic and extrinsic nonlinearities in the microwave response of superconductors by intermodulation distortion,
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Engineering metamaterials and photonic crystals in the microwave regime: from superlensing to the slow light
No full textLow-Field Magnetic Sensing with GMR Sensors
No full textBasic GMR structures and their applications Giant Magneto Resistance physics and geometric dependences Characterization of GMR sensors NDE measurement
THz Multi-Mode Q-Plate with a Fixed Rate of Change of the Optical Axis Using Form Birefringence
Full text linkWe report the design, fabrication and experimental validation of a THz all-dielectric multi-mode q-plate having a fixed rate of change of the optical axis. The device consists of space-variant birefringent slabs manufactured by 3D printing using melt-extruded Acrylonitrile Butadiene Styrene (ABS). The desired form birefringence is analytically evaluated and experimentally measured by the THz time domain spectroscopy technique. The manufactured q-plate design is characterized using a polarization-sensitive imaging setup. The full electric field spatial maps are acquired from the beam propagating through the q-plate. The device enables the realization of both radial and azimuthal vector beams at discrete frequency intervals by controlling the space-dependent orientation of the ordinary and extraordinary axes in the transverse plane with a multi-mode sequence
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