Indirect observation of phase conjugate magnons from non …
A phase conjugate mirror utilising four-wave mixing in a magnetic system is experimentally realised for the first time. Indirect evidence of continuous-wave phase conjugation has been observed experimentally and is supported by simulations. The experiment utilises a pump-probe method to excite a four-wave mixing process. Two …
Quantum correlated light beams from nondegenerate …
quantum correlations in a type II optical parametric oscillator above threshold: from nondegenerate to degenerate operation," Opt. Lett. 30 (10), 1177–1179 (2005). ... Four-wave mixing in atomic vapors is a natural choice for producing such light. In addition, proposals for using non-classical light to manipulate cold atoms have been put ...
(PDF) Wideband and low-error microwave frequency
Among them, the frequency-to-power mapping scheme was realized based on an optical comb filter [5], the four-wave mixing (FWM) [6], a multichannel chirped fiber Bragg grating (FBG) [7], and a Mach ...
What is non-degenerate Four Wave Mixing?
This is called non-degenerate four-wave mixing, reflecting the fact that all 4 components are at different frequencies. A better, fuller explanation can …
Three-Wave Mixing Kinetic Inductance Traveling-Wave …
Biased with a dc current, this amplifier operates in a three-wave mixing fashion, thereby reducing by several orders of magnitude the power of the microwave pump tone and associated parasitic heating compared to conventional four-wave mixing KIT amplifier devices. ... Widely Tunable, Nondegenerate Three-Wave Mixing Microwave …
Squeezed light from a nanophotonic molecule
In contrast to earlier work 12 that used a second ring resonator to tune the effective escape efficiency of a device for nondegenerate bright ... spontaneous four-wave mixing (SP-SFWM, red ...
A tunable narrowband optical filter via phase conjugation by
The formulation of phase conjugation via nondegenerate four-wave mixing in a Doppler-broadened resonant medium is generalized to include nondegenerate pump frequencies. This process is shown capable of yielding a tunable optical band-pass filter whose central frequency can be tuned over the entire Doppler profile with only a small …
Quantum theory of nondegenerate multiwave mixing: …
We extend the quantum theory of nondegenerate four-wave mixing by including the effects of the finite bandwidth of the driving-pump field. The interaction of a beam of two-level atoms with the two opposite driving-pump fields that have finite bandwidth inside a bimodal cavity is considered. The master equation for the cavity-field modes, …
Widely Tunable, Nondegenerate Three-Wave Mixing …
We present the first experimental realization of a widely frequency tunable, nondegenerate three-wave mixing device for quantum signals at gigahertz frequency. It …
Synthetic five-wave mixing in an integrated microcavity for …
Synthetic five-wave mixing. The principle of synthetic optical nonlinearity is illustrated in Fig. 1.In an optical cavity filled with non-centrosymmetric materials [Fig. 1(a)], the low-order ...
High-efficiency optical frequency mixing in an all-dielectric
We present nonlinear optical four-wave mixing in a silicon nanodisk dimer metasurface. Under the oblique incident plane waves, the designed metasurface exhibits a multiresonant feature with simultaneous excitations of three quasi-bound states in the continuum (BIC). Through employing these quasi-BICs with maximizing electric field …
Enhancement of nondegenerate four-wave mixing based …
An experimental observation of the enhancement of nondegenerate four-wave mixing based on electromagnetically induced transparency (EIT) in a lambda-type three-level system of rubidium atoms allows for a significant enhancement of the NDFWM signal in an optically dense medium. We report an experimental observation of …
Widely Tunable, Nondegenerate Three-Wave Mixing …
We present the first experimental realization of a widely frequency tunable, nondegenerate three-wave mixing device for quantum signals at gigahertz frequency. It is based on a new superconducting building block consisting of a ring of four Josephson junctions shunted by a cross of four linear inductances. The phase configuration of the …
Spontaneous Parametric Down-Conversion Induced by …
We have observed SPDC processes in a MEMS micro mirror and attributed them to non-degenerate three-wave mixing induced by geometric nonlinearities. All linear and nonlinear system parameters were ...
Four-wave mixing in microstructure fiber
We report what we believe to be the first experimental demonstration of nondegenerate four-wave mixing in a microstructure fiber. The effect of the χ (3) nonlinearity is enhanced in such a fiber because of the small core area, and we achieve phase matching by operating near the zero-dispersion wavelength (≃750 nm). We have observed parametric gains of …
Coupled Nonlinear Schrödinger System: Role of Four …
In this paper, we investigate the role of four-wave mixing effect on the structure of nondegenerate vector solitons and their collision dynamics. For this …
Wave mixing in semiconductor laser amplifiers due to …
Theoretical results on wave mixing in traveling-wave semiconductor laser amplifiers are presented. Starting from rather general density-matrix equations, including the effects of carrier-density pulsations, carrier heating, and spectral-hole burning, we derive equations capable of treating the range from nearly degenerate to highly nondegenerate …
Experimental realization of efficient nondegenerate four-wave mixing …
We present experimental results on the transfer of the orbital angular momentum of light to a system of cold cesium atoms. A nondegenerate four-wave mixing process was used as an indirect tool to ...
Squeezing based on nondegenerate frequency doubling …
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Fundamentals of Highly Non-Degenerate Cascaded …
1. Introduction. Four-wave mixing (FWM) processes result from the interplay between four electromagnetic waves coupled through the optical Kerr nonlinearity of a medium, given by the third-order susceptibility χ …
Generation of a frequency-degenerate four …
In this situation, manipulating nondegenerate multiphoton quantum states with a single-pump spontaneous four-wave mixing process (SFWM) is the most direct way 17,18.
Junxiang Zhang's research works | Zhejiang University, …
Nondegenerate four-wave mixing (NFWM) is a practical and effective technique for generating or amplifying light fields at different wavelengths, and could be used to create color correlation and ...
Observation of the interplay between seeded and self …
Nondegenerate four-wave mixing (NFWM) is a practical and effective technique for generating or amplifying light fields at different wavelengths, and could be used to create color correlation and ...
Enhancement of entanglement using cascaded four-wave mixing …
A maximal joint quadrature squeezing of −6.8±0.4 dB is experimentally obtained by a scheme of cascaded four-wave mixing (FWM) processes, which gives strong proof about the inseparability or ...
Role of the phase-matching condition in nondegenerate four-wave mixing
Nondegenerate forward four-wave mixing in hot atomic vapors has been shown to produce strong quantum correlations between twin beams of light [McCormick et al., Opt. Lett. 32, 178 (2007)], in a configuration which minimizes losses by absorption. In this paper, we look at the role of the phase-matching condition in the trade-off that occurs …
Entangled Images from Four-Wave Mixing
nondegenerate four-wave mixing (4WM) in a hot atomic vapor. The beams display continuous-variable entanglement in that the quantum fluctuations of a given pair of spatial modes cannot be described independently, a property also known as inseparability. This property is needed for the implementation of numerous quantum information protocols (5).
Observation of Squeezed States Generated by Four …
In order to enhance the four-wave — mixing gain and restrict the frequency spectrum to a noise-free region, the experiments described here use nondegenerate four-wave mixing in an optical cavity. '4 The measure-ment of the squeezed fields is accomplished by match-ing of the optical cavity mode to the signal port of a balanced homodyne ...
Generation of frequency degenerate twin beams in Rb85 vapor
Abstract. We demonstrate a new phase-matching geometry for four-wave mixing processes in hot Rb85 vapor, in which all four fields propagate in different directions but two of them are degenerate in frequency. When used as a parametric amplifier with an injected seed, two types of quantum mechanically correlated twin-beam states, either ...
Phase-matched nondegenerate four-wave mixing in one …
The authors report on nondegenerate four-wave mixing in the near infrared using a one-dimensional chalcogenide-glass based photonic crystal. For 76 lattice constants, they find a 3.5-fold enhancement of the mixing signal with respect to the optimum-thickness bulk chalcogenide film. The key is the ability to tailor the dispersion …
Controllable microwave three-wave mixing via a single …
Our proposal is valid not only for nondegenerate three-wave mixing, but it can also be applied for second-harmonic generation by changing the bias magnetic flux. Also, contrary to Ref. 28, where the circuit itself is in the classical regime, in our study, the three-wave mixing is generated using excitations of real quantized energy levels of ...
