journal article·2023-01

Independent Tuning of Exciton and Photon Energies in an Exciton–Polariton Condensate by Proton Implantation‐Induced Interdiffusion

Michael D. Fraser, H. Hoe Tan, Yago del Valle Inclan Redondo, Hima Kavuri, Elena A. Ostrovskaya, Christian Schneider, Sven Höfling, Yoshihisa Yamamoto, Seigo Tarucha

Advanced Optical Materials· Volume 11· Issue 1
Publisher page

Abstract

Abstract The use of high energy proton implantation is demonstrated to precisely and independently shift the energies of both exciton and photon components of GaAs microcavity exciton–polaritons. The technique applies post‐growth proton implantation and annealing steps in order to create a small local interdiffusion across either the quantum well–barrier material interfaces, or between the layers of the cavity distributed Bragg reflector mirrors to induce energy shifts to the exciton or photon components, respectively. The polariton mode is tunable by an energy exceeding 10 meV with a corresponding increase (decrease) in effective mass for photon (exciton) energy shifts, while maintaining narrow‐linewidth polariton photoemission and condensation for both photonic and excitonic polaritons. This technique uniquely enables new opportunities to explore coherent polariton matter with narrow‐linewidth and heavy masses in tight‐binding, non‐Hermitian, and topological landscapes with sub‐µm feature‐sizes, while also being a simple post‐growth process.
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Research context

OpenAlex topics: Strong Light-Matter Interactions · Quantum and electron transport phenomena · Thermal Radiation and Cooling Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

RIKEN Center for Emergent Matter Science Wako‐shi Saitama 351‐0198 Japan

Physics & Informatics Laboratories (PHI Lab) NTT Research, Inc. Sunnyvale CA 94085 USA

ARC Centre of Excellence for Transformative Meta‐Optical Systems Department of Electronic Materials Engineering Research School of Physics The Australian National University Canberra ACT 2601 Australia

ARC Centre of Excellence in Future Low‐Energy Electronics Technologies and Department of Quantum Science and Technology Research School of Physics The Australian National University Canberra ACT 2601 Australia

Institute of Physics University of Oldenburg D‐26129 Oldenburg Germany

Technische Physik Physikalisches Institut and Wilhelm Conrad Roentgen‐Research Center for Complex Material System Universität Würzburg Am Hubland D‐97074 Würzburg Germany

Funding

Japan Science and Technology Agency · Japan Society for the Promotion of Science · Australian Research Council

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