Publications by authors named "Divya J Prakash"
Article Synopsis
- Developed a device combining coaxial horn antennas and a helical slow-wave structure on a silicon wafer for enhanced characterization of slow-wave structures.
- Offers a method to analyze cold parameters and beam-wave interactions at the wafer level, avoiding the need for individual device packaging.
- Potential applications include compact and cost-effective traveling-wave tube amplifiers for THz frequency operations.
Reconfiguration of amorphous complex oxides provides a readily controllable source of stress that can be leveraged in nanoscale assembly to access a broad range of 3D geometries and hybrid materials. An amorphous SrTiO layer on a Si:B/Si Ge :B heterostructure is reconfigured at the atomic scale upon heating, exhibiting a change in volume of ≈2% and accompanying biaxial stress. The Si:B/Si Ge :B bilayer is fabricated by molecular beam epitaxy, followed by sputter deposition of SrTiO at room temperature.
View Article and Find Full Text PDFWe present a transformative route to obtain mass-producible helical slow-wave structures for operation in beam-wave interaction devices at THz frequencies. The approach relies on guided self-assembly of conductive nanomembranes. Our work coordinates simulations of cold helices (i.
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