tag:techtv.mit.edu,:Array/220405000 2008-11-13 15:28:36 -0500 RLE Professor Rajeev J. Ram of MIT discusses research and education in his group, and the intellectual challenges facing engineering at the frontiers of communications, energy and bioengineering. 457 tag:techtv.mit.edu,:Array/220375340 2009-06-25 16:17:47 -0400 RLE Professor Yoel Fink of MIT discusses research and education in his group, and the intellectual challenges facing engineers at the frontiers of photonic materials, systems and applications. 350