TY - RPRT TI - Distributed-feedback Terahertz Quantum-cascade Lasers with Laterally Corrugated Metal Waveguides AU - Williams, Benjamin S. AU - Kumar, Sushil AU - Hu, Qing AU - Reno, John L. PY - 2005 UR - https://ntrs.nasa.gov/citations/20070019355 ID - 20070019355 ER -