TY - RPRT TI - Terahertz Quantum Cascade Laser With Efficient Coupling and Beam Profile AU - Chattopadhyay, Goutam AU - Kawamura, Jonathan H. AU - Lin, Robert H. AU - Williams, Benjamin PY - 2012 UR - https://ntrs.nasa.gov/citations/20120011902 ID - 20120011902 ER -