Artificial dielectric polarizing beamsplitter and isolator…

Photo of the PBS with close-up views showing a square section of the stack-of-plates geometry and the bottom-corner of the mounting post. All dimensions are in millimeters.

Our work in partnership with Masaya Nagai from Osaka University, on an artificial dielectric polarizing beamsplitter (PBS) and an isolator for THz radiation was recently published in Scientific Reports.

See some publicity hereherehereherehere, and here.

A THz course for high-school students…

Rajind offered an introductory research-oriented course for high-school students, titled, The final frontier of the electromagnetic spectrum: the Terahertz Gap, under the Summer@Brown Pre-College program.

The course announcement and description can be found here.
The course syllabus can be found here.
The students’ evaluation of the course can be found here.

Here is the inaugural batch of students setting up and aligning an experimental THz system during the lab (click to see larger images):

New laboratory capabilities for THz magneto-optics!

Yue Huang, Brown University postdoctoral research associate and a member of the Mittleman Lab research team, shown next to the Lake Shore Cryotronics 8500 Series THz system for material characterization installed in the lab. Huang’s current research interests lie in the optical properties of Dirac semimetals and iron-based superconductors using THz spectroscopy in magnetic fields.

We have just acquired our new magneto-optic cryostat with terahertz spectroscopy integrated into the magnet bore.  We’ve worked with engineers at Lakeshore Cryotronics to get this system, the first commercial version of its kind, installed here at Brown. We’re looking forward to many exciting new results. Please contact us with any questions.