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Yao B, Gui YS, Rao JW, Kaur S, Chen XS, Lu W, Xiao Y, Guo H, Marzlin KP, Hu CM. Cooperative polariton dynamics in feedback-coupled cavities. Nat Commun 2017; 8:1437. [PMID: 29127391 PMCID: PMC5681655 DOI: 10.1038/s41467-017-01796-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 10/16/2017] [Indexed: 11/12/2022] Open
Abstract
The emerging field of cavity spintronics utilizes the cavity magnon polariton (CMP) induced by magnon Rabi oscillations. In contrast to a single-spin quantum system, such a cooperative spin dynamics in the linear regime is governed by the classical physics of harmonic oscillators. It makes the magnon Rabi frequency independent of the photon Fock state occupation, and thereby restricts the quantum application of CMP. Here we show that a feedback cavity architecture breaks the harmonic-oscillator restriction. By increasing the feedback photon number, we observe an increase in the Rabi frequency, accompanied with the evolution of CMP to a cavity magnon triplet and a cavity magnon quintuplet. We present a theory that explains these features. Our results reveal the physics of cooperative polariton dynamics in feedback-coupled cavities, and open up new avenues for exploiting the light-matter interactions.
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Affiliation(s)
- Bimu Yao
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba, Canada, R3T 2N2
- State Key Laboratory of Infrared Physics, Chinese Academy of Sciences, Shanghai, 200083, China
| | - Y S Gui
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba, Canada, R3T 2N2
| | - J W Rao
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba, Canada, R3T 2N2
| | - S Kaur
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba, Canada, R3T 2N2
| | - X S Chen
- State Key Laboratory of Infrared Physics, Chinese Academy of Sciences, Shanghai, 200083, China
| | - W Lu
- State Key Laboratory of Infrared Physics, Chinese Academy of Sciences, Shanghai, 200083, China.
| | - Y Xiao
- College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - H Guo
- Department of Physics, McGill University, Montréal, Québec, Canada, H3A 2T8
| | - K -P Marzlin
- Department of Physics, St. Francis Xavier University, Antigonish, Nova Scotia, Canada, B2G 2W5
- Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada, B3H 4R2
| | - C -M Hu
- Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba, Canada, R3T 2N2.
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Wu XG, Peeters FM, Wang YJ, McCombe BD. Blocking of the polaron effect and spin-split cyclotron resonance in a two-dimensional electron Gas. PHYSICAL REVIEW LETTERS 2000; 84:4934-4937. [PMID: 10990835 DOI: 10.1103/physrevlett.84.4934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/1999] [Indexed: 05/23/2023]
Abstract
Cyclotron resonance (CR) of high density GaAs quantum wells exhibits well-resolved spin splitting above the LO-phonon frequency. The spin-up and spin-down CR frequencies are reversed relative to the order expected from simple band nonparabolicity. We demonstrate that this is a consequence of the blocking of the polaron interaction which is a sensitive function of the filling of the Landau levels.
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Affiliation(s)
- XG Wu
- National Laboratory for Superlattice and Microstructure, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
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Hu CM, Batke E, Köhler K, Ganser P. Resonant polaron coupling of high index electron Landau levels in GaAs heterostructures. PHYSICAL REVIEW LETTERS 1996; 76:1904-1907. [PMID: 10060550 DOI: 10.1103/physrevlett.76.1904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Hu CM, Friedrich T, Batke E, Köhler K, Ganser P. Spin-split cyclotron resonance and spatial distribution of interacting electrons. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:12090-12094. [PMID: 9980350 DOI: 10.1103/physrevb.52.12090] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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