|Title||Quantum cascade laser lives on the edge|
|Publication Type||Journal Article|
|Year of Publication||2020|
|Authors||S. Mittal, and E. Waks|
|Type of Article||Editorial Material|
Devices known as quantum cascade lasers produce useful terahertz radiation, but are typically highly sensitive to fabrication defects. This limitation has now been overcome using a property called topological robustness. Terahertz radiation from a topological laser.