Critical Mode Softening in Ultra-Strong Coupling of Landau Level Transitions to THz Metamaterials Beyond the Hopfield Model
- Resource Type
- Conference
- Authors
- Keller, Janine; Scalari, Giacomo; Appugliese, Felice; Rajabali, Shima; Maissen, Curdin; Lehner, Christian A.; Wegscheider, Werner; Nataf, Pierre; Faist, Jerome; Haase, Johannes; Failla, Michele; Myronov, Maksym; Lcadley, David R.; Lloyd-Hughes, James
- Source
- 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2018 43rd International Conference on. :1-3 Sep, 2018
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Couplings
Cavity resonators
Resonant frequency
Dispersion
Cyclotrons
Metamaterials
Standards
- Language
- ISSN
- 2162-2035
We study the ultra-strong light-matter coupling of THz metamaterials to Landau level transitions in heavily non-parabolic strained Ge quantum wells (QWs) and InSb QWs. We systematically scale the frequency of the THz metamaterial and observe a clear deviation of the polariton energies from the standard Hopfield model. The lower polariton frequency is strongly below the expected frequency from a standard Hopfield model.