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DS: Fachverband Dünne Schichten
DS 3: 2D semiconductors and van der Waals heterostructures I (joint session HL/DS)
DS 3.5: Vortrag
Montag, 27. September 2021, 14:45–15:00, H4
Tunable Polymer/Air Bragg Optical Microcavity Configurations for Light-Matter Coupling with Transition-Metal Dichalcogenides and their Heterostructures — •Chirag Palekar1,2, Stephan Reitzenstein1, and Arash Rahimi-Iman2 — 1Present address: Institute of Solid State Physics, Technische Universität Berlin, D-10623 Berlin, Germany — 2Faculty of Physics and Materials Sciences Center, Philipps-Universität Marburg, 35032 Marburg, Germany
Light-matter interactions (LMI) in semiconducting materials is being studied extensively with the help of optical microcavities. Specifically, tunable microcavities provide a versatile platform to control the LMI between the material excitation and cavity photons. Here, we explore a new resonator approach which can be employed to achieve microscopic photonic Fabry-Pérot (FP) cavities with mechanically- tunable resonator modes and polymer/air Bragg mirrors [1], directly on a chip or device substrate in combination with active materials. Moreover, our simulations based on the transfer matrix method show, compression-induced mode control of the air-Bragg cavities enables tuning between the weak and strong coupling regime. Using this unique cavity configurations, LMI experiments with 2D semiconductors such as transitionmetal dichalcogenides (TMDC) are very attractive. Additionally, incorporation of TMDC heterostructures in FP cavities will provide a platform to understand the new regimes of Dicke superradiance as well as Bose-Einstein condensation of Moiré exciton-polaritons. Ref.: [1] Phys. Status Solidi RRL 2021, 15, 2100182