Open-cavity in closed-cycle cryostat as a quantum optics platform

Abstract

The introduction of an optical resonator can enable efficient and precise interaction between a photon and a solid-state emitter. It facilitates the study of strong light-matter interaction, polaritonic physics and presents a powerful interface for quantum communication and computing. A pivotal aspect in the progress of light-matter interaction with solid-state systems is the challenge of combining the requirements of cryogenic temperature and high mechanical stability against vibrations while maintaining sufficient degrees of freedom for in-situ tunability. Here, we present a fiber-based open Fabry-Pérot cavity in a closed-cycle cryostat exhibiting ultra-high mechanical stability while providing wide-range tunability in all three spatial directions. We characterize the setup and demonstrate the operation with the root-mean-square cavity length fluctuation of less than $90$ pm at temperature of $6.5$ K and integration bandwidth of $100$ kHz. Finally, we benchmark the cavity performance by demonstrating the strong-coupling formation of exciton-polaritons in monolayer WSe${}_2$ with a cooperativity of $1.6$. This set of results manifests the open-cavity in a closed-cycle cryostat as a versatile and powerful platform for low-temperature cavity QED experiments.

arXiv comment10 pages, 8 figures

References in corpus (34)

• Atomically thin MoS2: A new direct-gap semiconductor
• Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
• Quantum sensing
• Excitons in atomically thin transition metal dichalcogenides
• Interfacing single photons and single quantum dots with photonic nanostructures
• Strong light-matter coupling in two-dimensional atomic crystals
• Cavity-based quantum networks with single atoms and optical photons
• The hot pick-up technique for batch assembly of van der Waals heterostructures
• Fermi polaron-polaritons in charge-tunable atomically thin semiconductors
• Moiré heterostructures as a condensed matter quantum simulator
• A bright and fast source of coherent single photons
• A solid state light-matter interface at the single photon level
• Exciton-polaritons in van der Waals heterostructures embedded in tunable microcavities
• Quantum-Information Processing with Semiconductor Macroatoms
• Fiber Fabry-Perot cavity with high finesse
• Two-dimensional semiconductors in the regime of strong light-matter coupling
• Photonic-Crystal Exciton-Polaritons in Monolayer Semiconductors
• Room temperature Tamm-Plasmon Exciton-Polaritons with a WSe2 monolayer
• Observation of tunable charged exciton polaritons in hybrid monolayer WS2 $-$ plasmonic nanoantenna system
• A gated quantum dot far in the strong-coupling regime of cavity-QED at optical frequencies
• Coherent control and single-shot readout of a rare-earth ion embedded in a nanophotonic cavity
• A Quantum-Logic Gate between Distant Quantum-Network Modules
• Van der Waals Heterostructure Polaritons with moiré-Induced Nonlinearity
• Coupling of a single NV-center in diamond to a fiber-based microcavity
• Deterministic enhancement of coherent photon generation from a nitrogen-vacancy center in ultrapure diamond
• Quantum Electrodynamic Control of Matter: Cavity-Enhanced Ferroelectric Phase Transition
• Scalable designs for quantum computing with rare-earth-ion-doped crystals
• A stable fiber-based Fabry-Perot cavity
• A Scanning Cavity Microscope
• Cavity-control of bright and dark interlayer excitons in van der Waals heterostructures
• Resonant Excitation and Purcell Enhancement of Coherent Nitrogen-Vacancy Centers Coupled to a Fabry-Pérot Micro-Cavity
• Coherent and Purcell-enhanced emission from erbium dopants in a cryogenic high-Q resonator
• Design and low-temperature characterization of a tunable microcavity for diamond-based quantum networks
• Cryogenic platform for coupling color centers in diamond membranes to a fiberbased microcavity