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Transition metal dichalcogenides integrated within a high-quality microcavity support well-defined exciton polaritons. While the role of intralayer excitons in 2D polaritonics is well studied, interlayer excitons have been largely ignored…

介观与纳米尺度物理 · 物理学 2022-12-07 Jonas K. König , Jamie M. Fitzgerald , Joakim Hagel , Daniel Erkensten , Ermin Malic

Optical microcavities and metallic nanostructures have been shown to significantly modulate the dynamics and spectroscopic response of molecular systems. We present a study of the nonlinear optics of a model consisting of $N$ anharmonic…

Single layers of transition metal dichalcogenides are two-dimensional direct bandgap semiconductors with degenerate, but inequivalent, `valleys' in the electronic structure that can be selectively excited by polarized light. Coherent…

Two-dimensional transition metal dichalcogenides (TMDCs) have recently become attractive semiconductor materials for several optoelectronic applications, such as photodetection, light harvesting, phototransistors, light-emitting diodes, and…

光学 · 物理学 2018-07-04 Alex Krasnok , Sergey Lepeshov , Andrea Alú

Optical bound states in the continuum (BICs) provide a way to engineer very narrow resonances in photonic crystals. The extended interaction time in such systems is particularly promising for enhancement of nonlinear optical processes and…

Cavity exciton--polaritons are quasiparticles that form when quantum well excitons hybridize with a cavity mode. Here, we carry out photon correlation measurements under continuous wave resonant laser excitation to demonstrate quantum…

Resonant photoelastic coupling in semiconductor nanostructures opens new perspectives for strongly enhanced light-sound interaction in optomechanical resonators. One potential problem, however, is the reduction of the cavity Q-factor…

介观与纳米尺度物理 · 物理学 2014-11-19 G. Rozas , A. E. Bruchhausen , A. Fainstein , B. Jusserand , A. Lemaître

The insensitivity of photons towards external magnetic fields forms one of the hardest barriers against efficient magneto-optical control, aiming at modulating the polarization state of light. However, there is even scarcer evidence of…

介观与纳米尺度物理 · 物理学 2024-08-02 Magdalena Furman , Rafał Mirek , Mateusz Król , Wojciech Pacuski , Helgi Sigurðsson , Jacek Szczytko , Barbara Piętka

Monolayered MoSe2 is a promising new material to investigate advanced light-matter coupling as it hosts stable and robust excitons with comparably narrow optical resonances. In this work, we investigate the evolution of the lowest lying…

介观与纳米尺度物理 · 物理学 2017-03-28 N. Lundt , A. Maryński , E. Cherotchenko , A. Pant , X. Fan , G. Sęk , S. Tongay , A. V. Kavokin , S. Höfling , C. Schneider

The exploitation of the strong light-matter coupling regime and exciton-polariton condensates has emerged as a compelling approach to introduce strong interactions and nonlinearities into numerous photonic applications, ranging from…

Strong light-matter coupling gives rise to polaritons - hybrid excitations whose mixed photonic and matter character enables control over optical, electronic and chemical properties. This Feature Article surveys the main architectures…

Polariton-based devices require materials where light-matter coupling under ambient conditions exceeds losses, but our current selection of such materials is limited. Here we measured the dispersion of polaritons formed by the $A$ and $B$…

材料科学 · 物理学 2021-06-16 Patryk Kusch , Niclas S. Mueller , Martin T. Hartmann , Stephanie Reich

Strong coupling of excitonic resonances with a cavity gives rise to exciton-polaritons which possess a modified energy landscape compared to the uncoupled emitter. However, due to the femtosecond lifetime of the so-called bright polariton…

介观与纳米尺度物理 · 物理学 2022-05-19 Jan M. Lüttgens , Zhuoran Kuang , Nicolas F. Zorn , Tiago Buckup , Jana Zaumseil

Nonperturbative coupling between cavity photons and excitons leads to formation of hybrid light-matter excitations termed polaritons. In structures where photon absorption leads to creation of excitons with aligned permanent dipoles, the…

介观与纳米尺度物理 · 物理学 2018-11-30 Emre Togan , Hyang-Tag Lim , Stefan Faelt , Werner Wegscheider , Atac Imamoglu

Exciton-polaritons are unique quasiparticles with hybrid properties of an exciton and a photon, opening ways to realize ultrafast strongly nonlinear systems and inversion-free lasers based on Bose-Einstein polariton condensation. However,…

光学 · 物理学 2023-04-06 N. Glebov , M. Masharin , B. Borodin , P. Alekseev , F. Benimetskiy , S. Makarov , A. Samusev

The dynamics of a mobile quantum impurity in a degenerate Fermi system is a fundamental problem in many-body physics. The interest in this field has been renewed due to recent ground-breaking experiments with ultra-cold Fermi gases. Optical…

介观与纳米尺度物理 · 物理学 2017-04-05 Meinrad Sidler , Patrick Back , Ovidiu Cotlet , Ajit Srivastava , Thomas Fink , Martin Kroner , Eugene Demler , Atac Imamoglu

Two dimensional semiconductors provide an ideal platform for exploration of linear exciton and polariton physics, primarily due to large exciton binding energy and strong light-matter coupling. These features, however, generically imply…

介观与纳米尺度物理 · 物理学 2020-04-22 Li Bing Tan , Ovidiu Cotlet , Andrea Bergschneider , Richard Schmidt , Patrick Back , Yuya Shimazaki , Martin Kroner , Atac Imamoglu

Nanoplasmonic systems combined with optically-active two-dimensional materials provide intriguing opportunities to explore and control light-matter interactions at extreme sub-wavelength lengthscales approaching the exciton Bohr radius.…

Enhancement and active control of light-matter interactions at the atomic scale is important for developing next-generation nanophotonic and quantum optical devices. Here, we demonstrate electric control of both excitonic strong coupling…

The recent progress in nanotechnology [1,2] and single-molecule spectroscopy [3-5] paves the way for cost-effective organic quantum optical technologies emergent with a promise to real-life devices operating at ambient conditions. In this…