آخرین محصولات
Frequency-tunable Kerr-free three-wave mixing with a …
Three-wave mixing is a key process in superconducting quantum information processing, being involved in quantum-limited amplification and parametric coupling be. ... In this Letter, we demonstrate how to overcome this constraint by introducing the gradiometric SNAIL, a doubly flux biased superconducting circuit in which both effective ...
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Optical mode conversion through nonlinear two-wave mixing
Hermitepenalty1000-hskip0ptGaussian (HG), Laguerrepenalty1000-hskip0ptGaussian (LG), and Ince-Gaussian (IG) modes have been of considerable importance for photonics. They have revealed a unique way to optical manipulation and are particularly promising for optical communications. This paper combines HG modes, as a …
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Phononic Frequency Comb via Intrinsic Three-Wave Mixing
In this Letter, we report the first clear experimental evidence for a phononic frequency comb. We show that the phononic frequency comb is generated through the …
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Frequency comb-based four-wave-mixing spectroscopy
Abstract. We experimentally demonstrate four-wave-mixing (FWM) spectroscopy using frequency combs. The experiment uses a geometry where excitation pulses and FWM signals generated by a sample co-propagate. We separate them in the radio frequency domain by heterodyne detection with a local oscillator comb that has a different repetition …
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Background-free four-wave mixing microscopy of small gold …
Here, we demonstrate four-wave mixing microscopy on individual small gold nanoparticles inside the hepatopancreas of Oniscus Asellus, a terrestrial isopod, which ingests metals found in the soil. After the exposure to food containing 10 nm radius gold nanoparticles, hepatopancreas tubules were collected, and nanoparticles were imaged …
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Measurement of fiber nonlinear Kerr coefficient by four-wave mixing
Abstract: We demonstrate a Kerr coefficient measurement of dispersion-shifted fibers based on the nonlinear mixing process between two continuous pump waves and on the power measurements of the created frequencies. A numerical model simulates the experimental conditions and is exploited to determine the Kerr coefficient. Unavoidable polarization …
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Entanglement in a four-wave mixing process
Abstract. We investigate different kinds of entanglement in a four-wave mixing process with a degenerate pump. After analyses on means and quantum fluctuations of the three output beams (Stokes, anti-Stokes, and pump), we verify the existence of genuine tripartite entanglement, and quantify bipartite, two-mode, as well as tripartite ...
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(PDF) Spontaneous four-wave mixing in microring resonators
We consider spontaneous four-wave mixing in a microring resonator, presenting photon-pair generation rates and biphoton wave functions. ... 3006 OPTICS LETTERS / Vol. 35, No. 18 / September 15 ...
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Robust and compact entanglement generation from diode-laser …
Four-wave-mixing processes are now routinely used to demonstrate multi-spatial-mode Einstein-Podolsky-Rosen entanglement and intensity difference squeezing. Diode-laser-pumped four-wave mixing processes have recently been shown to provide an affordable, compact, and stable source for intensity difference squeezing, but it was …
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Multi-wave mixing using a single vector optical field
Here, we report on a multiwave mixing method using a single vector optical field. The spatially separated phase-matching beams are obtained after the vector light passes through a polarizer. Filtering out part (s) of them and focusing the remaining ones into the Rb vapor cell, we detected degenerate four-wave mixing, degenerate six-wave …
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(PDF) Single-Molecule Vacuum Rabi Splitting: Four-Wave Mixing …
Examples include plasmonic nanocavities [1], optical cavities using four-wave mixing schemes [2], metasurface systems [3], self-assembled Casimir microcavities [4], deep-strong coupling in ...
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Wave mixing in nonlinear magnetic metacrystal | Applied Physics …
Wave mixing in nonlinear magnetic metacrystal. We present experimental measurements of three- and four-wave mixing phenomena in an artificially structured …
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Near-Degenerate Four-Wave-Mixing Microscopy | Nano Letters
Fluorescence microscopy has been widely used to explore the nanoscale world because of its superb sensitivity, but it is limited to fluorescent samples. Hence, various spectroscopic contrasts have been explored for imaging nonfluorescent species. Here we report a multiphoton microscopy based on single-beam near-degenerate four wave mixing (ND …
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Optical time lens based on four-wave mixing on a silicon chip
We propose a new technique to realize an optical time lens for ultrafast temporal processing that is based on four-wave mixing in a silicon nanowaveguide. The demonstrated time lens produces more than 100 π of phase shift, which is not readily achievable using electro-optic phase modulators. Using this method we demonstrate 20× magnification of a signal …
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Phys. Rev. Lett. 124, 010509 (2020)
Abstract We report the direct characterization of energy-time entanglement of narrow-band biphotons produced from spontaneous four-wave mixing in cold atoms.
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Text Waves • Decorate your texts with Waves ෴ ️෴
Speed optimization. Better navigation. Emoji, Symbols, etc will be better categorized. Cleaner, uncluttered design. Shapes will be merged with Emoticons. Waves will be …
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Coexistence of multiple multimode nonlinear mixing regimes in a
In summary, this paper experimentally proves the general possibility to simultaneously generate N = N 1 + 1-wave mixing and non-N = N 2 + 1-wave mixing processes through the significant drive of a single mode.While the subject of (N + 1)-wave mixing based N-mode phononic frequency combs is incipient, the presented possibility …
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Phys. Rev. Lett. 106, 023001 (2011)
We show that noncollinear high harmonic generation (HHG) can be fully understood in terms of nonlinear optical wave mixing. We demonstrate this by superposing on the fundamental ${ensuremath{omega}}_{1}$ field its second harmonic ${ensuremath{omega}}_{2}$ of variable intensity in a noncollinear geometry. It allows …
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Experimental Investigation of Inter-Modal Four-Wave Mixing in …
Abstract: We experimentally demonstrate nondegenerate four-wave mixing (FWM) between waves belonging to different spatial modes of a 5-km-long few-mode fiber (FMF). Of the three inter-modal FWM (IM-FWM) processes possible, two have been experimentally observed. These IM-FWM processes are found to be phase-matched …
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Effective four-wave mixing in the lithium niobate on insulator
Here, we demonstrate effective four-wave mixing (FWM) in a lithium niobate on insulator (LNOI) microdisk via cascaded quadratic nonlinear processes of second-harmonic generation and difference ...
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Decaying and revival dynamics of molecules revealed by attosecond wave
We theoretically investigate the decaying dynamics in model molecules by using attosecond wave-mixing spectroscopy. We find that transient wave-mixing signal in molecular systems can be used to measure the lifetimes of vibrational states with attosecond time resolution. Typically, there are many vibrational states in the molecular system, and …
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Phys. Rev. Lett. 124, 223901 (2020)
Physics Magazine. The Kerr effect in optical microresonators plays an important role for integrated photonic devices and enables third harmonic generation, …
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Decaying and revival dynamics of molecules revealed by …
Original Manuscript: August 4, 2022 Revised Manuscript: October 4, 2022 Manuscript Accepted: October 12, 2022 Published: October 25, 2022 Abstract We …
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From classical four-wave mixing to parametric fluorescence in …
Four-wave mixing (FWM) can be either stimulated or occur spontaneously. The first process is intrinsically much stronger and well understood through classical nonlinear optics. The latter, also known as parametric fluorescence, can be explained only in the framework of a quantum theory of light. We experimentally demonstrated that, in a microring …
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Metal-Free Flat Lens Using Negative Refraction by Nonlinear Four-Wave
An alternative proposal using negative refraction by four-wave mixing has attracted much interest recently, though most existing experiments still require metals and none of them have been implemented for an optical lens. Here, we experimentally demonstrate a metal-free flat lens for the first time using negative refraction by …
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Multidimensional four-wave-mixing spectroscopy with squeezed …
A set of nonlinear spectroscopic measurements with quantum light is presented. It involves a strong pump with frequency ω pu and a weak probe at ω pr interacting with a solid state target to generate a conjugated beam ω c = 2 ω p u − ω p r via nondegenerate four-wave mixing. The χ (3) susceptibility can be measured by the noise …
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Selective excitation of four-wave mixing by helicity in gated …
Here, we demonstrate that optical helicity can be used as an extra tuning knob for four-wave mixing in gated graphene. Our results reveal the helicity selection rule for four-wave mixing in monolayer graphene, revealing nearly perfect circular polarization. Corresponding theoretical interpretations of the helicity selection rule that are also ...
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Wave mixing in nonlinear magnetic metacrystal | Applied Physics Letters
Wave mixing in nonlinear magnetic metacrystal. We present experimental measurements of three- and four-wave mixing phenomena in an artificially structured nonlinear magnetic metacrystal at microwave frequencies. The sum frequency generation signal for the varactor-loaded split-ring resonator (VLSRR) metamaterial agrees …
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Phys. Rev. Lett. 128, 060503 (2022)
In this Letter, we propose and demonstrate a measurement-free all-optical entanglement swapping. In our scheme, a high-gain parametric amplifier based on the four-wave mixing process is exploited to realize the function of Bell-state measurement without detection, which avoids the introduction of the optic-electro and electro-optic conversion.
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Long Exciton Dephasing Time and Coherent Phonon Coupling in …
Here, we report measurements of the coherent and incoherent exciton dynamics on the 100 fs to 10 ns time scale, determining dephasing and density decay rates in these NCs. The experiments are performed on CsPbBr 2 Cl NCs using transient resonant three-pulse four-wave mixing (FWM) in heterodyne detection at temperatures ranging …
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