skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Integrated patch and slot array antenna for terahertz quantum cascade lasers at 4.7 THz

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4871369· OSTI ID:22262574
; ; ; ;  [1]
  1. 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