320px 480px 640px CHAI CCAT Heterodyne Array Instrument (CHAI) for the upcoming CCAT-Prime telescope for millimeter and submillimeter observations
320px 480px 640px GREAT, upGREAT German Receiver for Astronomy at Terahertz Frequencies (GREAT, upGREAT) for the Stratospheric Observatory For Infrared Astronomy (SOFIA)
320px 480px 640px SMART SubMillimeter Array Receiver for Two Frequencies (SMART) Kölner Observatorium für SubMillimeter Astronomie
320px 480px 640px QCLs Patch array antenna coupled Quantum Cascade Lasers (QCLs). Extracting high quality optical beams from Terahertz-QCLs