Log in

Relevant bibliographies by topics / NanOQTech / Journal articles

To see the other types of publications on this topic, follow the link: NanOQTech.

Journal articles on the topic 'NanOQTech'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 36 journal articles for your research on the topic 'NanOQTech.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Tao, Yu, Yu-Xiang Zhang, Sanchar Sharma, Xiang Zhang, Yaroslav M. Blanter, and Gerrit E. W. Bauer. "Magnon Accumulation in Chirally Coupled Magnets." March 11, 2020. https://doi.org/10.1103/PhysRevLett.124.107202.

Full text

Abstract:

We report strong chiral coupling between magnons and photons in microwave waveguides that contain chains of small magnets on special lines. Large magnon accumulations at one edge of the chain emerge when exciting the magnets by a phased antenna array. This mechanism holds the promise of new functionalities in nonlinear and quantum magnonics.

APA, Harvard, Vancouver, ISO, and other styles

2

Kunkel, Nathalie, and Philippe Goldner. "Recent Advances in Rare Earth Doped Inorganic Crystalline Materials for Quantum Information Processing." January 30, 2018. https://doi.org/10.1002/zaac.201700425.

Full text

Abstract:

Since quantum information technologies are expected to offer communication security and high computational capacities, research in the field is currently attracting a lot of attention. Among the materials studied so far, rare earth doped inorganic insulators are one of the most promising. With the different available trivalent rare earth ions, the visible and the IR range including the telecom wavelength at 1.5 μm can be covered. Transitions are usually narrow, and at low temperatures, long optical and spin coherence time can often be observed. Investigations using bulk single crystals have

APA, Harvard, Vancouver, ISO, and other styles

3

Harada, Nao, Alban Ferrier, Diana Serrano, et al. "Chemically vapor deposited Eu3+:Y2O3 thin films as a material platform for quantum technologies." August 4, 2020. https://doi.org/10.1063/5.0010833.

Full text

Abstract:

Rare earth ions hosted in solids are good candidates for quantum technologies due to their chemical stability and optical and spin transitions exhibiting long coherence lifetimes. While bulk oxide crystals are usually the preferred host material, the development of a scalable silicon-compatible thin film platform would be desirable. In this paper, we report on the growth of Y<sub>2(1−x)</sub>Eu<sub>2x</sub>O<sub>3</sub> thin films on silicon in the full range of Eu<sup>3+</sup> concentration by direct liquid injection chemical vapor deposition (CVD). Our sub-micrometer polycrys

APA, Harvard, Vancouver, ISO, and other styles

4

Zhang, S., N. Lučič, N. Galland, et al. "Precision measurements of electric-field-induced frequency displacements of an ultranarrow optical transition in ions in a solid." December 1, 2020. https://doi.org/10.1063/5.0025356.

Full text

Abstract:

We report a series of measurements of the effect of an electric field on the frequency of the ultranarrow linewidth <sup>7</sup>F<sub>0</sub>-<sup>5</sup>D<sub>0</sub> optical transition of Eu<sup>3+</sup> ions in an Y<sub>2</sub>SiO<sub>5</sub> matrix at cryogenic temperatures. We provide linear Stark coefficients along two dielectric axes and for the two different substitution sites of the Eu<sup>3+</sup> ions, with an unprecedented accuracy and an upper limit for the quadratic Stark shift. The measurements, which indicate that the electric field sensitivity is a fac

APA, Harvard, Vancouver, ISO, and other styles

5

Zhang, Yu-Xiang, and Klaus Mølmer. "Theory of Subradiant States of a One-Dimensional Two-Level Atom Chain." January 7, 2019. https://doi.org/10.1103/PhysRevLett.122.203605.

Full text

Abstract:

Recently, the subradiant states of one-dimensional two-level atom chains coupled to light modes were found to have decay rates obeying a universal scaling, and an unexpected fermionic character of the multiply-excited subradiant states was discovered. In this Letter, we theoretically obtain the singly-excited subradiant states, and by eliminating the superradiant modes, we demonstrate a relation between the multiply-excited subradiant states and the Tonks-Girardeau limit of the Lieb- Liniger model which explains the fermionic behavior. In addition, we identify a new family of states with corre

APA, Harvard, Vancouver, ISO, and other styles

6

Yan, Ying, Yichao Li, Adam Kinos, et al. "Inverse engineering of shortcut pulses for high fidelity initialization on qubits closely spaced in frequency." March 18, 2019. https://doi.org/10.1364/OE.27.008267.

Full text

Abstract:

High-fidelity qubit initialization is of significance for efficient error correction in fault tolerant quantum algorithms. Combining two best worlds, speed and robustness, to achieve high-fidelity state preparation and manipulation is challenging in quantum systems, where qubits are closely spaced in frequency. Motivated by the concept of shortcut to adiabaticity, we theoretically propose the shortcut pulses via inverse engineering and further optimize the pulses with respect to systematic errors in frequency detuning and Rabi frequency. Such protocol, relevant to frequency selectivity, is app

APA, Harvard, Vancouver, ISO, and other styles

7

Debnath, Kamanasish, Yuan Zhang, and Klaus Mølmer. "Lasing in the superradiant crossover regime." December 26, 2018. https://doi.org/10.1103/PhysRevA.98.063837.

Full text

Abstract:

A new class of laser, which harnesses coherence in both light and atoms, is possible with ultracold alkaline-earth-metal atoms trapped in an optical lattice inside an optical cavity. Different lasing regimes, including superradiance, superradiant, and conventional lasing, are distinguished by the relative coherence stored in the atoms and in the cavity mode. We analyze the physics in two different experimentally achievable regions of the superradiant lasing regime. Our calculations confirm the narrow linewidth of superradiant lasing for the doubly forbidden clock transition <sup>3</sup>P<

APA, Harvard, Vancouver, ISO, and other styles

8

Zhong, Tian, and Philippe Goldner. "Emerging rare-earth doped material platforms for quantum nanophotonics." September 27, 2019. https://doi.org/10.1515/nanoph-2019-0185.

Full text

Abstract:

Rare-earth dopants are arguably one of the most studied optical centers in solids, with applications spanning from laser optoelectronics, biosensing, lighting to displays. Nevertheless, harnessing rare-earth dopants’ extraordinary coherence properties for quantum information technologies is a relatively new endeavor, and has been rapidly advancing in recent years. Leveraging the state-of-the-art photonic technologies, on-chip rare-earth quantum devices functioning as quantum memories, single photon sources and transducers have emerged, often with potential performances unrivaled by other

APA, Harvard, Vancouver, ISO, and other styles

9

Galland, N., N. Lučić, S. Zhang, et al. "Double-heterodyne probing for ultra-stable laser based on spectral hole burning in a rare-earth doped crystal." April 8, 2020. https://doi.org/10.1364/OL.389833.

Full text

Abstract:

We present an experimental technique for realizing a specific absorption spectral pattern in a rare-earth-doped crystal at cryogenic temperatures. This pattern is subsequently probed on two spectral channels simultaneously, thereby producing an error signal allowing frequency locking of a laser on the said spectral pattern. Appropriate combination of the two channels leads to a substantial reduction of the detection noise, paving the way to realizing an ultra-stable laser for which the detection noise can be made arbitrarily low when using multiple channels. We use such technique to realize a

APA, Harvard, Vancouver, ISO, and other styles

10

Galland, N., N. Lucic, B. Fang, et al. "Mechanical tunability of an ultra-narrow spectral feature with uniaxial stress." May 11, 2020. https://doi.org/10.1103/PhysRevApplied.13.044022.

Full text

Abstract:

Rare-earth doped crystals have numerous applications ranging from frequency metrology to quan- tum information processing. To fully benefit from their exceptional coherence properties, the effect of mechanical strain on the energy levels of the dopants - whether it is a resource or perturbation - needs to be considered. We demonstrate that by applying uniaxial stress to a rare-earth doped crystal containing a spectral hole, we can shift the hole by a controlled amount that is larger than the width of the hole. We deduce the sensitivity of Eu3+ ions in an Y2SiO5 matrix as a function o

APA, Harvard, Vancouver, ISO, and other styles

11

Kiilerich, Alexander Holm, and Klaus Mølmer. "Multistate and multihypothesis discrimination with open quantum systems." May 14, 2018. https://doi.org/10.1103/PhysRevA.97.052113.

Full text

Abstract:

We show how an upper bound for the ability to discriminate any number N of candidates for the Hamiltonian governing the evolution of an open quantum system may be calculated by numerically efficient means. Our method applies an effective master equation analysis to evaluate the pairwise overlaps between candidate full states of the system and its environment pertaining to the Hamiltonians. These overlaps are then used to construct an N-dimensional representation of the states. The optimal positive-operator valued measure (POVM) and the corresponding probability of assigning a fa

APA, Harvard, Vancouver, ISO, and other styles

12

Zhang, Yuan, Yu-Xiang Zhang, and Klaus Mølmer. "Monte-Carlo simulations of superradiant lasing." November 15, 2018. https://doi.org/10.1088/1367-2630/aaec36.

Full text

Abstract:

We simulate the superradiant dynamics of ensembles of atoms in the presence of collective and individual atomic decay processes. We apply the Monte-Carlo wave-function method and identify quantum jumps in a reduced Dicke state basis, which reflects the permutation symmetry of the system. While the number of density matrix elements in the Dicke representation increases polynomially with atom number, the quantum jump dynamics populates only a single Dicke state at the time and thus efficient simulations can be carried out for tens of thousands of atoms. The superradiant pulses from initially exc

APA, Harvard, Vancouver, ISO, and other styles

13

Serrano, Diana, Jenny Karlsson, Alexandre Fossati, Alban Ferrier, and Philippe Goldner. "All-optical control of long-lived nuclear spins in rare-earth doped nanoparticles." May 29, 2018. https://doi.org/10.1038/s41467-018-04509-w.

Full text

Abstract:

Nanoscale systems that coherently couple to light and possess spins offer key capabilities for quantum technologies. However, an outstanding challenge is to preserve properties, and especially optical and spin coherence lifetimes, at the nanoscale. Here, we report optically controlled nuclear spins with long coherence lifetimes (<em>T</em><sub>2</sub>) in rare-earth-doped nanoparticles. We detect spins echoes and measure a spin coherence lifetime of 2.9 ± 0.3 ms at 5 K under an external magnetic field of 9 mT, a <em>T</em><sub>2</sub> value comparable to thos

APA, Harvard, Vancouver, ISO, and other styles

14

Liu, Shuping, Alexandre Fossati, Diana Serrano, Alexandre Tallaire, Alban Ferrier, and Philippe Goldner. "Defect Engineering for Quantum Grade Rare-Earth Nanocrystals." July 22, 2020. https://doi.org/10.1021/acsnano.0c02971.

Full text

Abstract:

Nanostructured systems that combine optical and spin transitions offer new functionalities for quantum technologies by providing efficient quantum light–matter interfaces. Rare-earth (RE) ion-doped nanoparticles are promising in this field as they show long-lived optical and spin quantum states. However, further development of their use in highly demanding applications, such as scalable single-ion-based quantum processors, requires controlling defects that currently limit coherence lifetimes. In this work, we show that a post-treatment process that includes multistep high-temperature ann

APA, Harvard, Vancouver, ISO, and other styles

15

Motte, Jean-François, Nicolas Galland, Jérôme Debray, et al. "Microscale Crystalline Rare-Earth Doped Resonators for Strain-Coupled Optomechanics." October 29, 2019. https://doi.org/10.5281/zenodo.3521711.

Full text

Abstract:

Rare-earth ion doped crystals for hybrid quantum technologies are an area of growing interest in the solid-state physics community. We have earlier theoretically proposed a hybrid scheme of a mechanical resonator which is fabricated out of a rare-earth doped mono-crystalline structure. The rare-earth ion dopants have absorption energies which are sensitive to crystal strain, and it is thus possible to couple the ions to the bending motion of the crystal cantilever. This type of resonator can be useful for either investigating the laws of quantum physics with material objects or for application

APA, Harvard, Vancouver, ISO, and other styles

16

Debnath, Kamanasish, Kiilerich Alexander Holm, Albert Benseny, and Klaus Mølmer. "Coherent spectral hole burning and qubit isolation by stimulated Raman adiabatic passage." August 9, 2019. https://doi.org/10.1103/PhysRevA.100.023813.

Full text

Abstract:

We describe how stimulated Raman adiabatic passage (STIRAP) can be applied to create spectral holes in an inhomogeneously broadened system. Due to the robustness of STIRAP, our proposal guarantees a high flexibility and accuracy, and at variance with traditional spectral hole burning techniques, it may require substantially fewer time resources since it does not rely upon the spontaneous decay of an intermediate excited state. We investigate the effects on the scheme of dephasing and dissipation as well as of unintentional driving of undesired transitions due to a finite splitting of the initi

APA, Harvard, Vancouver, ISO, and other styles

17

Liu, Shuping, Diana Serrano, Alexandre Fossati, Alexandre Tallaire, Alban Ferrier, and Philippe Goldner. "Controlled size reduction of rare earth doped nanoparticles for optical quantum technologies." October 19, 2018. https://doi.org/10.1039/c8ra07246a.

Full text

Abstract:

Rare earth doped nanoparticles with sub-wavelength size can be coupled to optical micro- or nano-cavities to enable efficient single ion readout and control, a key requirement for quantum processors and high-fidelity single-ion quantum memories. However, producing small nanoparticles with good dispersion and exploitable optical coherence properties, another key aspect for these applications, is highly challenging by most synthesis and nano-fabrication methods. We report here on the wet chemical etching of Eu<sup>3+</sup>:Y<sub>2</sub>O<sub>3</sub> nanoparticles and demonstrate that a controlle

APA, Harvard, Vancouver, ISO, and other styles

18

Fossati, Alexandre, Shuping Liu, Jenny karlsson, et al. "A Frequency-Multiplexed Coherent Electro-optic Memory in Rare Earth Doped Nanoparticles." August 26, 2020. https://doi.org/10.1021/acs.nanolett.0c02200.

Full text

Abstract:

Quantum memories for light are essential components in quantum technologies like long-distance quantum communication and distributed quantum computing. Recent studies have shown that long optical and spin coherence lifetimes can be observed in rare earth doped nanoparticles, opening exciting possibilities over bulk materials, e.g., for enhancing coupling to light and other quantum systems, and material design. Here, we report on coherent light storage in Eu<sup>3+</sup>:Y<sub>2</sub>O<sub>3</sub> nanoparticles using the Stark echo modulation memory (SEMM) quantum protocol. We first measur

APA, Harvard, Vancouver, ISO, and other styles

19

Welinski, Sacha, Alexey Tiranov, Moritz Businger, Alban Ferrier, Mikael Afzelius, and Philippe Goldner. "Coherence Time Extension by Large-Scale Optical Spin Polarization in a Rare-Earth Doped Crystal." September 16, 2020. https://doi.org/10.1103/PhysRevX.10.031060.

Full text

Abstract:

Optically addressable spins are actively investigated in quantum communication, processing, and sensing. Optical and spin coherence lifetimes, which determine quantum operation fidelity and storage time, are often limited by spin-spin interactions, which can be decreased by polarizing spins. Spin polarization can be achieved using optical pumping, large magnetic fields, or mK-range temperatures. Here, we show that optical pumping of a small fraction of ions with a fixed-frequency laser, coupled with spin-spin interactions and spin diffusion, leads to substantial spin polarization in a paramagn

APA, Harvard, Vancouver, ISO, and other styles

20

Le, Coq Yann, Klaus Moelmer, and Signe Seidelin. "Position- and momentum-squeezed quantum states in micro-scale mechanical resonators." March 18, 2020. https://doi.org/10.1142/S0217984920501936.

Full text

Abstract:

A challenge of modern physics is to investigate the quantum behavior of a bulk material object, for instance a mechanical oscillator. We have earlier demonstrated that by coupling a mechanical oscillator to the energy levels of embedded rare-earth ion dopants, it is possible to prepare such a resonator in a low phonon number state. Here, we describe how to extend this protocol in order to prepare momentum- and position-squeezed states, and we analyze how the obtainable degree of squeezing depends on the initial conditions and on the coupling of the oscillator to its thermal environment.

APA, Harvard, Vancouver, ISO, and other styles

21

Scarafagio, Marion, Alexandre Tallaire, Klaas-Jan Tielrooij, et al. "Ultrathin Eu- and Er-Doped Y2O3 Films with Optimized Optical Properties for Quantum Technologies." May 3, 2019. https://doi.org/10.1021/acs.jpcc.9b02597.

Full text

Abstract:

Atomic layer deposited (ALD) Y2O3 thin films have been thoroughly investigated for optical or electronic applications. The coherent spectroscopy of lanthanide ions doped into this material has also recently attracted increasing interest in the field of quantum technologies for which they are considered promising candidates in quantum memories or as spin−photon interfaces. However, these most demanding applications require a deep control over the local positioning of the ions and their close environment in the crystalline matrix. This study focuses on the structural as well

APA, Harvard, Vancouver, ISO, and other styles

22

Zhang, Yu-Xiang, Yuan Zhang, and Klaus Mølmer. "Surface Plasmon Launching by Polariton Superradiance." March 26, 2019. https://doi.org/10.1021/acsphotonics.9b00193.

Full text

Abstract:

The condition of phase matching prohibits the transfer of excitation from free-space photons to surface plasmon polaritons (SPPs). We propose and analyze a scheme that excites an ensemble of emitters in a collective state, which is phase matched with the SPP by the optical pulses used for its preparation. By a collective enhancement the ensemble, hence, emits an SPP in a well-defined direction. We demonstrate the scheme by analyzing the launching of near-infrared graphene SPP. Our theory incorporates the dispersive and dissipative properties of the plasmon modes to evaluate the non-Markovian e

APA, Harvard, Vancouver, ISO, and other styles

23

Serrano, Diana, Chetan Deshmukh, Shuping Liu, et al. "Coherent optical and spin spectroscopy of nanoscale Pr3+ : Y2O3." October 4, 2019. https://doi.org/10.1103/PhysRevB.100.144304.

Full text

Abstract:

We investigate the potential for optical quantum technologies of Pr3+: Y2O3 in the form of monodisperse spherical nanoparticles. We measured optical inhomogeneous lines of 27 GHz and optical homogeneous linewidths of 108 and 315 kHz in particles with 400- and 150-nm average diameters, respectively, for the 1D2(0) ↔ 3H4(0) transition at 1.4 K. Furthermore, ground-state and 1D2 excited-state hyperfine structures in Y2O3 are here determined by spectral hole burning and modeled by complete Hamiltonian calculations. Groundstate spin transitions have energies of 5.99 and 10.42 MHz, for which we

APA, Harvard, Vancouver, ISO, and other styles

24

Benedikter, Julia, Thea Moosmayer, Thomas Mader, Thomas Hümmer, and David Hunger. "Transverse-mode coupling effects in scanning cavity microscopy." October 15, 2019. https://doi.org/10.1088/1367-2630/ab49b4.

Full text

Abstract:

Tunable open-access Fabry–Pérot microcavities enable the combination of cavity enhancement with high resolution imaging. To assess the limits of this technique originating from background variations, we perform high-finesse scanning cavity microscopy of pristine planar mirrors. We observe spatially localized features of strong cavity transmission reduction for certain cavity mode orders, and periodic background patterns with high spatial frequency. We show in detailed measurements that the localized structures originate from resonant transverse-mode coupling and arise from the top

APA, Harvard, Vancouver, ISO, and other styles

25

Debnath, Kamanasis, Yuan Zhang, and Klaus Moelmer. "Collective dynamics of inhomogeneously broadened emitters coupled to an optical cavity with narrow linewidth." November 13, 2019. https://doi.org/10.1103/PhysRevA.100.053821.

Full text

Abstract:

We study collective effects in an inhomogeneously broadened ensemble of two-level emitters coupled to an optical cavity with narrow linewidth. Using second-order mean-field theory we find that the emitters within a few times the cavity linewidth exhibit synchronous behavior and undergo collective Rabi oscillations. Under proper conditions, the synchronized oscillations give rise to a modulated intracavity field which can excite emitters detuned by many linewidths from the cavity resonance. To study the synchronization in further detail, we simplify the model and consider two ensembles and stud

APA, Harvard, Vancouver, ISO, and other styles

26

Scarafagio, Marion, Alexandre Tallaire, Marie-Hélène Chavanne, et al. "Improving the Luminescent Properties of Atomic Layer Deposition Eu:Y2O3 Thin Films through Optimized Thermal Annealing." February 19, 2020. https://doi.org/10.1002/pssa.201900909.

Full text

Abstract:

Crystalline rare‐earth (RE)‐doped Y2O3 films are an attractive system for a wide range of photonics applications including quantum technologies which aim at harnessing optical or spin transitions with long coherence times to achieve new functionalities such as quantum storage or information processing. Herein, atomic layer deposition (ALD) of Eu‐doped Y2O3 thin films with improved optical properties is presented. A crucial post‐treatment step to obtain high‐quality films is annealing at elevated temperatures (>900 °C). However, the main drawback of this approach is the

APA, Harvard, Vancouver, ISO, and other styles

27

Zhang, Yu-Xiang, Yuan Zhang, and Klaus Mølmer. "Dicke phase transition in a disordered emitter–graphene-plasmon system." September 19, 2018. https://doi.org/10.1103/PhysRevA.98.033821.

Full text

Abstract:

We study the Dicke phase transition in a disordered system of emitters coupled to the plasmonic modes of a graphene monolayer. This system has unique properties associated with the tunable, dissipative, and broadband characters of the graphene surface plasmons, as well as the disorder due to the random spatial distribution and the inhomogeneous linewidth broadening of the emitters. We apply the Keldysh functional-integral approach and identify a normal phase, a superradiant phase, and a spin-glass phase of the system. The conditions for these phases and their experimental signatures are discus

APA, Harvard, Vancouver, ISO, and other styles

28

Bartholomew, J.G., Oliveira Lima K. de, A. Ferrier, and Ph. Goldner. "Optical Line Width Broadening Mechanisms at the 10 kHz Level in Eu3+:Y2O3 Nanoparticles." January 18, 2017. https://doi.org/10.1021/acs.nanolett.6b03949.

Full text

Abstract:

We identify the physical mechanisms responsible for the optical homogeneous broadening in Eu<sup>3+</sup>:Y<sub>2</sub>O<sub>3</sub> nanoparticles to determine whether rare-earth crystals can be miniaturized to volumes less than λ<sup>3</sup> whilst preserving their appeal for quantum technology hardware. By studying how the homogeneous line width depends on temperature, applied magnetic field, and measurement time scale the dominant broadening interactions for various temperature ranges above 3 K were characterized. Below 3 K the homogeneous line width is dominated by an interaction not obser

APA, Harvard, Vancouver, ISO, and other styles

29

Karlsson, J., N. Kunkel, A. Ikesue, A. Ferrier, and P. Goldner. "Nuclear spin coherence properties of 151Eu3+ and 153Eu3+ in a Y2O3 transparent ceramic." February 8, 2017. https://doi.org/10.1088/1361-648X/aa529a.

Full text

Abstract:

We have measured inhomogeneous linewidths and coherence times (T<sub>2</sub>) of nuclear spin transitions in a Eu<sup>3+</sup>:Y<sub>2</sub>O<sub>3</sub> transparent ceramic by an all-optical spin echo technique. The nuclear spin echo decay curves showed a strong modulation which was attributed to interaction with Y nuclei in the host. The coherence time of the 29 MHz spin transition in <sup>151</sup>Eu<sup>3+</sup> was 16 ms in a small applied magnetic field. Temperature dependent measurements showed that the coherence time was constant up to 18 K and was limited by spin-lattice relaxation fo

APA, Harvard, Vancouver, ISO, and other styles

30

Gobron, O., K. Jung, N. Galland, et al. "Dispersive heterodyne probing method for laser frequency stabilization based on spectral hole burning in rare-earth doped crystals." July 5, 2017. https://doi.org/10.1364/OE.25.015539.

Full text

Abstract:

Frequency-locking a laser to a spectral hole in rare-earth doped crystals at cryogenic temperature has been shown to be a promising alternative to the use of high finesse Fabry-Perot cavities when seeking a very high short term stability laser (M. J. Thorpe et al., Nature Photonics 5, 688 (2011)). We demonstrate here a novel technique for achieving such stabilization, based on generating a heterodyne beat-note between a master laser and a slave laser whose dephasing caused by propagation near a spectral hole generate the error signal of the frequency lock. The master laser is far detuned from

APA, Harvard, Vancouver, ISO, and other styles

31

Ferrier, Alban, Nao Harada, Marion Scarafagio, et al. "Harnessing Atomic Layer Deposition and Diffusion to Spatially Localize Rare-Earth Ion Emitters." August 18, 2020. https://doi.org/10.1021/acs.jpcc.0c04019.

Full text

Abstract:

The control of rare-earth ion doping profiles is a key challenge for several photonic applications and quantum technologies that require spatially localized emitters. In this work, we propose to use atomic layer deposition (ALD) followed by an annealing post-treatment to localize europium emitters close to the surface of a Y<sub>2</sub>O<sub>3</sub> film or a Y<sub>2</sub>SiO<sub>5</sub> single crystal by exploiting in-diffusion. Indeed, ALD is a conformal method that can provide in-depth nanometer-scale positioning accuracy on a large scale. However, the post-thermal annealing requi

APA, Harvard, Vancouver, ISO, and other styles

32

Zhang, S., N. Galland, N. Lučić, et al. "Inhomogeneous response of an ion ensemble from mechanical stress." March 12, 2020. https://doi.org/10.1103/PhysRevResearch.2.013306.

Full text

Abstract:

Material strain has recently received growing attention as a complementary resource to control the energy levels of quantum emitters embedded inside a solid-state environment. Some rare-earth ion dopants provide an optical transition which simultaneously has a narrow linewidth and is highly sensitive to strain. In such systems, the technique of spectral hole burning, in which a transparent window is burned within the large inhomogeneous profile, allows one to benefit from the narrow features, which are also sensitive to strain, while working with large ensembles of ions. However, working with

APA, Harvard, Vancouver, ISO, and other styles

33

Cano, Daniel, Alban Ferrier, Karuppasamy Soundarapandian, et al. "Fast electrical modulation of strong near-field interactions between erbium emitters and graphene." August 14, 2020. https://doi.org/10.1038/s41467-020-17899-7.

Full text

Abstract:

Combining the quantum optical properties of single-photon emitters with the strong near-field interactions available in nanophotonic and plasmonic systems is a powerful way of creating quantum manipulation and metrological functionalities. The ability to actively and dynamically modulate emitter-environment interactions is of particular interest in this regard. While thermal, mechanical and optical modulation have been demonstrated, electrical modulation has remained an outstanding challenge. Here we realize fast, all-electrical modulation of the near-field interactions between a nanolayer of

APA, Harvard, Vancouver, ISO, and other styles

34

Zhang, Yu-Xiang, Chuan Yu, and Klaus Moelmer. "Subradiant bound dimer excited states of emitter chains coupled to a one dimensional waveguide." February 19, 2020. https://doi.org/10.1103/PhysRevResearch.2.013173.

Full text

Abstract:

This article shows that chains of optical or microwave emitters coupled to a one-dimensional (1D) waveguide support subradiant states with close pairs of excited emitters, which have longer lifetimes than even the most subradiant states with only a single excitation. Exact, analytical expressions for nonradiative excitation dimer states are obtained in the limit of infinite chains. To understand the mechanism underlying these states, we present a formal equivalence between subradiant dimers and single localized excitations around a chain defect (unoccupied site). Our analytical mapping permits

APA, Harvard, Vancouver, ISO, and other styles

35

Klaus, Mølmer, Le Coq Yann, and Seidelin Signe. "Dispersive coupling between light and a rare-earth-ion–doped mechanical resonator." November 2, 2016. https://doi.org/10.1103/PhysRevA.94.053804.

Full text

Abstract:

By spectrally hole burning an inhomogeneously broadened ensemble of ions while applying a controlled perturbation, one can obtain spectral holes that are functionalized for maximum sensitivity to different perturbations. We propose to use such hole-burned structures for the dispersive optical interaction with rare-earth-ion dopants whose frequencies are sensitive to crystal strain due to the bending motion of a crystal cantilever. A quantitative analysis shows that good optical sensitivity to the bending motion is obtained if a magnetic-field gradient is applied across the crystal during hole

APA, Harvard, Vancouver, ISO, and other styles

36

Casabone, B., J. Benedikter, T. Hümmer, et al. "Cavity-enhanced spectroscopy of a few-ion ensemble in Eu3+:Y2O3." September 28, 2018. https://doi.org/10.5281/zenodo.1546139.

Full text

Abstract:

We report on the coupling of the emission from a single europium-doped nanocrystal to a fiber-based microcavity under cryogenic conditions. As a first step, we study the properties of nanocrystals that are relevant for cavity experiments and show that embedding them in a dielectric thin film can significantly reduce scattering loss and increase the light–matter coupling strength for dopant ions. The latter is supported by the observation of a fluorescence lifetime reduction, which is explained by an increased local field strength. We then couple an isolated nanocrystal to an optical micr

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!