Dynamic control of Purcell enhanced emission of erbium ions in nanoparticles

Casabone, Bernardo; Deshmukh, Chetan; Liu, Shuping; Serrano, Diana; Ferrier, Alban; Hümmer, Thomas; Goldner, Philippe; Hunger, David; de Riedmatten, Hugues

doi:10.48550/arxiv.2001.08532

Cited by 11 publications

(19 citation statements)

References 36 publications

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“…Among all dopants studied to date [2], erbium stands out as it offers an optical transition with exceptional coherence [3,4] in the C-band of fiber-optical telecommunication, where loss is minimal. Pioneering experiments have demonstrated the storage of photons [5][6][7], the integration into waveguides [8][9][10][11] and resonators [4,6,[12][13][14][15], and the potential for second-long hyperfine coherence at high magnetic fields using the isotope 167 Er [16].…”

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confidence: 99%

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Coherent Control in the Ground and Optically Excited States of an Ensemble of Erbium Dopants

et al. 2021

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Ensembles of erbium dopants can realize quantum memories and frequency converters that operate in the minimal-loss wavelength band of fiber optical communication. Their operation requires the initialization, coherent control and readout of the electronic spin state. In this work, we use a split-ring microwave resonator to demonstrate such control in both the ground and optically excited state. The presented techniques can also be applied to other combinations of dopant and host, and may facilitate the development of new quantum memory protocols and sensing schemes.

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confidence: 99%

“…The groundstate lifetime is thus considerably longer than that of the excited state, 11 ms [22]. Thus, even without stimulated emission using another laser [17] or optical resonator [4,9,13,15,23], by applying a sufficient magnetic field we can achieve efficient spin initialization.…”

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confidence: 99%

Coherent Control in the Ground and Optically Excited States of an Ensemble of Erbium Dopants

et al. 2021

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“…Furthermore, the Fabry-Perot cavity offers full in situ spatial and spectral tunability along with a Gaussian output mode [41,45,56]. As a consequence, open Fabry-Perot cavities offer an attractive platform to enhance the emission from various single-photon emitters embedded in solid-state hosts [41,44,[57][58][59][60][61][62][63][64].…”

Section: Introductionmentioning

confidence: 99%

High quality-factor diamond-confined open microcavity

Flågan,

Riedel,

Javadi

et al. 2021

Preprint

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With a highly coherent, optically addressable electron spin, the nitrogen vacancy (NV) centre in diamond is a promising candidate for a node in a quantum network. However, the NV centre is a poor source of coherent single photons owing to a long radiative lifetime, a small branching ratio into the zero-phonon line (ZPL) and a poor extraction efficiency out of the high-index host material. In principle, these three shortcomings can be addressed by resonant coupling to a single mode of an optical cavity. Utilising the weak-coupling regime of cavity electrodynamics, resonant coupling between the ZPL and a single cavity-mode enhances the transition rate and branching ratio into the ZPL. Furthermore, the cavity channels the light into a well-defined mode thereby facilitating detection with external optics. Here, we present an open Fabry-Perot microcavity geometry containing a single-crystal diamond membrane, which operates in a regime where the vacuum electric field is strongly confined to the diamond membrane. There is a field anti-node at the diamond-air interface. Despite the presence of surface losses, quality factors exceeding 120 000 and a finesse F = 11 500 were observed. We investigate the interplay between different loss mechanisms, and the impact these loss channels have on the performance of the cavity. This analysis suggests that the "waviness" (roughness with a spatial frequency comparable to that of the microcavity mode) is the mechanism preventing the quality factors from reaching even higher values. Finally, we apply the extracted cavity parameters to the NV centre and calculate a predicted Purcell factor exceeding 150.

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“…Besides experiments on high-quality bulk single crystals, strong efforts have recently been launched towards combining REIs with nanophotonic structures [9]. This has enabled single REI detection and control [10], fast spontaneous emission modulation [11], lifetime limited single-photon emission [12], and on-chip optical storage [13]. Further developments of these exciting topics is, however, impeded by the difficulty to nano-fabricate crystalline host materials that preserve REIs quantum properties for integration into high-quality nanophotonic devices.…”

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confidence: 99%

“…The limited line broadening over 100s of µs in the Eu 3+ complex is favorable for spectrally resolved repetitive single ion addressing. Furthermore, lifetime shortening by Purcell enhancement in an optical micro-cavity by a factor of ≈ 100, would enable generation of indistinguishable single photons [11,26].…”

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confidence: 99%

Rare-Earth Molecular Crystals with Ultra-narrow Optical Linewidths for Photonic Quantum Technologies

Serrano,

Kumar,

Heinrich

et al. 2021

Preprint

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Rare-earth ions are promising solid state systems to build light-matter interfaces at the quantum level. This relies on their potential to show narrow optical homogeneous linewidths or, equivalently, long-lived optical quantum states. In this letter, we report on europium molecular crystals that exhibit linewidths in the 10s of kHz range, orders of magnitude narrower than other molecular centers. We harness this property to demonstrate efficient optical spin initialization, coherent storage of light using an atomic frequency comb, 1

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Dynamic control of Purcell enhanced emission of erbium ions in nanoparticles

Cited by 11 publications

References 36 publications

Coherent Control in the Ground and Optically Excited States of an Ensemble of Erbium Dopants

Coherent Control in the Ground and Optically Excited States of an Ensemble of Erbium Dopants

High quality-factor diamond-confined open microcavity

Rare-Earth Molecular Crystals with Ultra-narrow Optical Linewidths for Photonic Quantum Technologies

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