Elliott R. Brown from the University of California, Los Angeles, was awarded the status of Fellow[1] in the American Physical Society,[2] after they were nominated by their Forum on Industrial and Applied Physics in 2007,[3] for breakthroughs in THz science and technology including new solid-state coherent sources: (1) resonant-tunneling oscillators, and (2) photomixers; new detectors based on single-crystal, semimetal-semiconductor junctions; and high-resolution spectroscopy of solids.