Integrated patch and slot array antenna for terahertz quantum cascade lasers at 4.7 THz
- Institute for Quantum Electronics, ETH-Zürich, CH-8093 Zürich (Switzerland)
Our work presents a slot and a patch array antenna at the front facet of a 4.7 THz quantum cascade laser as extractor, decreasing the facet reflectivity down to 2.6%. The resulting output power increases by a factor 2 and the slope efficiency by a factor 4. The simulated and the measured far-fields are in good agreement.
- OSTI ID:
- 22262574
- Journal Information:
- Applied Physics Letters, Vol. 104, Issue 16; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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