Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
| Publication date | 13/11/2014 |
|---|---|
| Host publication | 2014 39th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2014 |
| Publisher | IEEE Computer Society |
| Number of pages | 2 |
| ISBN (electronic) | 9781479938773 |
| <mark>Original language</mark> | English |
| Event | 39th International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2014 - Tucson, United States Duration: 14/09/2014 → 19/09/2014 |
| Conference | 39th International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2014 |
|---|---|
| Country/Territory | United States |
| City | Tucson |
| Period | 14/09/14 → 19/09/14 |
| Conference | 39th International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2014 |
|---|---|
| Country/Territory | United States |
| City | Tucson |
| Period | 14/09/14 → 19/09/14 |
We have realized a compact beam-shaping and collimating element for a double metal terahertz (THz) quantum cascade laser (QCL) emitting around 2.9 THz using directly integrated hollow metallic waveguides. Our approach allowed us to efficiently improve the beam profile with respect to the standard emission pattern observed out of a double metal QCL. The Gaussian-like mode profile emerging from the metallic waveguides also exhibited a remarkable degree of collimation. The other laser characteristics such as the total output power and maximal operational temperature were marginally affected.