Now showing items 1-6 of 6
The fabrication of THz emitting mesas by reactive ion-beam etching of superconducting Bi2212 with multilayer masks
Generation of powerful THz radiation from intrinsic Josephson Junctions (IJJs) of Bi2Sr2CaCu2O8+δ (Bi2212) may require mesas with large lateral dimensions. However, there are difﬁculties in fabrication of perfect rectangular ...
Terahertz wave emission from layered superconductors: Interferometer measurements
Rectangular Bi2Sr2CaCu2O 8+δ (Bi2212) mesa structures were fabricated on as-grown Bi2212 single crystal superconductors using standard photolithography and Ar ion beam etching techniques. We have performed c-axis resistance ...
Emission of the THz waves from large area mesas of superconducting Bi 2Sr2CaCu2O8+δ by the injection of spin polarized current
Rectangular Au/Co/Au/Bi2Sr2CaCu2O 8+δ (Bi2212) mesa structures with large areas and high thicknesses were fabricated on as-grown Bi2212 single crystals in order to obtain small critical current from as-grown mesas by the ...
Fabrication of double mesa structures by E-beam lithography from high temperature superconducting Bi2Sr2CaCu2O 8+δ (Bi2212) for powerful terahertz emission
We work on a frequency tunable solid state device to meet the needs of continuous, coherent, powerful terahertz emission sources that fill practically important terahertz gap. High temperature superconducting (HTS) coherently ...
Improvement of optical and electrical properties of ITO thin films by electro-annealing
The effect of electro-annealing in vacuum and air on the optical and electrical properties of ITO thin films grown by large area DC magnetron sputtering was investigated. Moreover, the performances of the electro-annealed ...
Interferometer measurements of terahertz waves from Bi 2Sr 2CaCu 2O 8+d mesas
(IOP Publishing, 2012-12)
We fabricated rectangular mesa structures of superconducting Bi 2Sr 2CaCu 2O 8+d (Bi2212) using e-beam lithography and Ar ion beam etching techniques for terahertz (THz) emission. c-axis resistance versus temperature (R-T), ...