TY - RPRT TI - Index-Coupled Distributed-Feedback Semiconductor Quantum Cascade Lasers Fabricated Without Epitaxial Regrowth AU - Briggs, Ryan M. AU - Frez, Clifford F. AU - Forouhar, Siamak PY - 2018 UR - https://ntrs.nasa.gov/citations/20180004308 ID - 20180004308 ER -