Encouraging progress has been reported by the Lake Shore THz system project team during the last few months of 2012. Upon completion of their first prototype system build, the team was able to confirm successful operation of the specially-designed CW-THz emitter and detector components in the cryostat at temperatures around 4 K. Shortly after that, the superconducting magnet was turned on and for the first time ever, we validated that these THz components continued to function properly with a magnetic field of 7 T applied to the sample space. Good news certainly, paving the way for sample measurements to begin.
Several THz benchmark materials, such as lactose, were first measured to confirm overall performance, with some interesting shifts and accentuated responses seen at cryogenic temperatures. Now underway are measurements of materials like indium antimonide, where application of the magnetic field is already proving to reveal expected cyclotron resonances that will ultimately enable carrier mobility characterizations.
Stay tuned here, and subscribe to our blog, to keep updated on new breakthroughs and results as we explore how other materials respond to CW-THz in this exciting new characterization system.