I-V and Radiation Characteristics in BSCCO Sub-THz Oscillator at Liquid He Temperature

Temperature dependence of I-V characteristics of C60 molecule

Making use of a generalized Green’s function technique and Landauer formalism, the temperature depended current-voltage (I-V) characteristics of C60 molecule, sandwiched between two metallic electrodes are numerically investigated. In addition, the influence of the electron-phonon coupling strength on the electronic properties of the molecule is studied. The I-V characteristics of the molecule ...

Coherent Thz Radiation at Elettra

Coherent synchrotron radiation (CSR) in the infrared has been observed at ELETTRA since the year 2005 [1] under several machine parameter settings in the SISSI beam line. Effort has been made to produce a “stable” THz signal for experimental use. The description of the machine settings to that end and the measurements performed are presented and discussed.

New phases of liquid He at low temperature

Modulating sub-THz radiation with current in superconducting metamaterial.

We show that subterahertz transmission of the superconducting metamaterial, an interlinked two-dimensional network of subwavelength resonators connected by a continuous superconducting wire loop, can be dynamically modulated by passing electrical current through it. We have identified the main mechanisms of modulation that correspond to the suppression of the superconductivity in the network by...

THz LOCAL OSCILLATOR SOURCES

Planar GaAs Schottky diode based multiplier chains driven by HEMT power amplifiers have now demonstrated useful power beyond the 1 THz range. This paper will briefly review the state-of-the-art in planar Schottky diode multiplier chains for coherent detection. Future challenges and promising emerging technologies will also be outlined.