Single self-assembled InAs/GaAs quantum dots are a promising solid-state technology, with which vacuum Rabi splitting, single-photon-level nonlinearities, and bright, pure, indistinguishable single-photon generation having been demonstrated. For such achievements, nanofabrication is used to create structures in the dot preferentially interacts strongly-confined optical modes. An open question extent may also have an adverse influence, through creation of traps surface states that could...

Two-color second-order correlations of the light scattered near-resonantly by a quantum dot were measured means spectrally filtered coincidence detection. The effects filter frequency and bandwidth studied under monochromatic laser excitation, complete two-photon spectrum was reconstructed. exhibits rich structure associated with both real virtual transitions down ``dressed states'' ladder. Photon pairs generated via are found to violate Cauchy-Schwarz inequality factor 60. Our experiments...

Hexagonal boron nitride (hBN), a wide-bandgap 2D material, is rapidly emerging as promising candidate for quantum optics experiments. In this work, we demonstrate, to the best of our knowledge, first signature Rabi oscillations, time-domain analogue Mollow triplet, from resonantly driven hBN emitter. Resonant photoluminescence excitation measurements reveal that emitter undergoes strong spectral diffusion with time scale 37±25  ms, resulting in 0.6 GHz broadened linewidth at weak limit. We...

We report a photoluminescence imaging system for locating single quantum emitters with respect to alignment features. Samples are interrogated in 4 K closed-cycle cryostat by high numerical aperture (NA = 0.9, 100× magnification) objective that sits within the cryostat, enabling efficiency collection of emitted photons without image distortions due windows. The locations InAs/GaAs dots >50 μm × 50 field view determined ≈4.5 nm uncertainty (one standard deviation) 1 s long acquisition....

We provide the first experimental confirmation of a three-way quantum coherence identity possessed by single pure-state photons. Our results demonstrate that traditional wave-particle duality is specifically limited this identity. As new consequence, we show itself can be amplified, attenuated, or turned completely off. In Young double-slit context found to directly relevant, and it supplies rare quantitative backup for one Bohr's philosophical pronouncements.

We analyze the light scattered by a single InAs quantum dot interacting with resonant continuous-wave laser. High-resolution spectra reveal clear distinctions between coherent and incoherent scattering, laser intensity spanning more than four orders of magnitude. find that fraction coherently photons can approach unity under sufficiently weak or detuned excitation, ruling out pure dephasing as relevant decoherence mechanism. show how spectral diffusion shapes spectra, correlation functions,...

Monolayer transition metal dichalcogenides (TMDCs) have recently emerged as a host material for localized optically active quantum emitters that generate single photons.(1−5) Here, we investigate fully excitons and trions from such TMDC embedded in van der Waals heterostructure. We use direct electrostatic doping through the vertical heterostructure device assembly to confined trions. Distinct spectral jumps function of applied voltage bias, excitation power-dependent charging, demonstrate...

We report a Franson interferometry experiment based on correlated photon pairs generated via frequency-filtered scattered light from near-resonantly driven two-level semiconductor quantum dot. In contrast to spontaneous parametric down-conversion and four-wave mixing, this approach can produce single of photons. have measured visibility as high 66%, which goes beyond the classical limit 50% approaches violation Bell's inequalities (70.7%).Received 13 September...

We report on resonant light scattering experiments in which a single InAs quantum dot is exposed to two independently tunable continuous-wave lasers while the scattered analyzed background free, with high spectral and temporal resolution. In contrast well-known monochromatic case exhibiting Rabi oscillations, this bichromatic additional field introduces oscillations at half difference of laser frequencies harmonics thereof, persisting beyond natural lifetime. The familiar ``dressed-states''...

Purcell enhanced Raman scattering (PERS) by means of a doubly resonant Fabry-Perot microcavity (mode volume ≈ 100 μm3 and finesse 30 000) has been investigated as technique for isotopic ratio gas analysis. At the pump frequency, cavity supports buildup circulating power while simultaneously enabling spontaneous emission rate enhancement at Stokes frequency. The three most common isotopologues CO2 were quantified, signal was obtained from 13C16O2 down to partial pressure 2 Torr. Due its small...

Strain engineering is a natural route to control the electronic and optical properties of two-dimensional (2D) materials. Recently, 2D semiconductors have also been demonstrated as an intriguing host strain-induced quantum-confined emitters with unique valley inherited from semiconductor. Here, we study continuous reversible tuning light emitted by such localized in monolayer tungsten diselenide embedded van der Waals heterostructure. Biaxial strain applied on via transfer lead magnesium...

Short (40-200 μs) single focused CO(2) laser pulses of energy ≳100 μJ were used to fabricate high quality concave micromirror templates on silica and fluoride glass. The ablated features have diameters ≈20-100 μm average root-mean-square (RMS) surface microroughness near their center less than 0.2 nm. Temporally monitoring the fabrication process revealed that it proceeds a time scale shorter pulse duration. We implement fast feedback control loop (≈20 kHz bandwidth) based light emitted by...

We report the measurement of field-field and photon-photon correlations light scattered by two InAs quantum dots separated ≈40 μm. Near 4 K a large fraction photons can be coherently each dot leading to one-photon interference at beam splitter (visibility ≈20%). Simultaneously, two-photon is also observed ≈40%) due indistinguishability different emitters. show how spectral diffusion accounts for reduction in visibility through variations photon flux.

We report the experimental investigation of a regime microscopic Fabry-Perot resonators in which competing light-induced forces---photothermal expansion and photothermal refraction---acting oppositely on different timescales lead to self-sustained persistent oscillations. Previously concealed as ordinary thermo-optic bistability---a common feature low-loss resonator physics---these dynamics are visible fast pulsations cavity transmission or reflection measurements at sufficiently high time...

We investigate the spectral and temporal properties of light scattered near resonantly by a single quantum dot when incident laser field is frequency comb consisting superposition monochromatic waves equidistant in frequency. Such fields encompass those generated by, e.g., periodically pulsed laser. A general theoretical treatment for calculation first- second-order correlation functions given which takes account diffusion through slowly varying detuning from resonance, permitting accurate...

We investigated the first and second-order correlations of light scattered near-resonantly by a quantum dot under excitation frequency comb, i.e., periodically pulsed laser source. In contrast to its monochromatic counterpart, resonance fluorescence spectrum features superposition sidebands distributed around central peak with maximal sideband intensity near Rabi frequency. Distinguishing between coherently incoherently reveals pulse-area dependent oscillations evolving different phase for...

In this work, we present the measurement of laser-induced fluorescence from N 2 + ions via B Σ u − X g band system in near-ultraviolet. The were generated continuously by a plasma glow discharge low pressure and corona ambient air. decay time was found to rapidly decrease with increasing leading an extrapolated rate ≈10 10 s −1 at atmospheric pressure. spite quenching, able observe laser induced air means time-gated spectral measurement. process comparing emission signal that spontaneous...

Light recirculating inside an optical resonator can spontaneously trigger persistent cyclical thermomechanical mirror deformations. We have observed and characterized the dynamics of such deformations in high-finesse Fabry–Perot microcavities built following three distinct designs. The designs differed form factor confinement geometry, incorporating either (A) two nominally planar bulk mirrors, (B) one microconcave mirror, or (C) at tip fiber. For all cases, cavity transmission exhibited...

We report a buried heterostructure vertical-cavity surface-emitting laser fabricated by epitaxial regrowth over an InGaAs quantum well gain medium. The technique enables microscale lateral confinement that preserves high cavity quality factor (loaded Q≈4000) and eliminates parasitic charging effects found in existing approaches. Under optimal spectral overlap between medium mode (achieved here at T = 40 K), lasing was obtained with incident optical power as low Pth=10 mW (λp=808 nm)....

We experimentally observe that quantum duality of a single photon is controlled by its self-entanglement through three-way coherence identity $V^2+D^2+C^2=1$. Here V, D, C represent waveness, particleness, and respectively.

We experimentally observe that quantum duality of a single photon is controlled by its self-entanglement through three-way coherence identity V 2 + D +C = 1. Here V, D, C represent waveness, particleness, and respectively.

Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text M. Peiris, B. Petrak, k. konthasinghe, Y. yu, Z. Niu, and A. muller, "Two-Photon Spectrum of the Light Scattered by a Quantum Dot," in CLEO: 2015, OSA Technical Digest (online) (Optica Publishing Group, 2015), paper FF1B.6. Export BibTex Endnote (RIS) HTML Plain alert Save article