Excitation of bright and dark microwave magnetic envelope solitons in a resonant ring

Kalinikos, B. A.; Kovshikov, N. G.; Patton, Carl E.

doi:10.1063/1.124343

Cited by 22 publications

(26 citation statements)

References 9 publications

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“…2 and 3 mirror and extend previous results for single peaked solitons. [3][4][5][6] These studies have shown that, when there is appropriate compensation between the dispersion and the nonlinear response, one can form a robust and non-dispersive bright MME soliton with a CP profile across the peak. Constant phase, therefore, provides a simple unambiguous criterion for bright MME soliton formation.…”

Section: A Spatial Evolutionmentioning

confidence: 98%

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Spatial evolution of multipeaked microwave magnetic envelope solitons in yttrium iron garnet thin films

Kraemer

Scott

et al. 2004

Phys. Rev. B

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The spatial evolution of multi-peaked microwave magnetic envelope solitons in a thin yttrium iron garnet (YIG) film has been measured and analyzed. The experiments were done on a long and narrow 5-m-thick single-crystal YIG film strip. Double-peaked and triple-peaked magnetostatic backward volume wave soliton pulses were excited at a nominal carrier frequency of 7.0 GHz. The measurements utilized a movable inductive magnetodynamic probe detection system. The formation of these multi-peaked soliton (MPS) pulses is a two step process. First, an initial single large amplitude pulse gradually separates into two or more nonsolitonic peaks. After a certain propagation time, these nonsolitonic peaks evolve, in sequence, into solitonic peaks with constant phase (CP) and an overall stair-like profile. Typically, the larger amplitude peaks lead in time and become solitonic first. As the MPS signals propagate and decay, the peaks lose their CP character in reverse sequence. The region of existence for the "fully formed" MPS pulses for which all the individual peaks have CP character is extremely narrow, typically on the order of a few tenths of a millimeter. The velocities of the individual peaks scale linearly with the peak powers. A nonlinear response analysis of the peak velocity based on the method of envelopes gives a reasonable match to the data.

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Section: A Spatial Evolutionmentioning

confidence: 98%

“…More specifically, Ref. 3 and later papers [4][5][6] show that single MME soliton pulses have a constant phase (CP) profile across the center part of the pulse. It is expected that multipeaked soliton (MPS) entities should also have peaks with a CP character.…”

Section: Introductionmentioning

confidence: 99%

Spatial evolution of multipeaked microwave magnetic envelope solitons in yttrium iron garnet thin films

Kraemer

Scott

et al. 2004

Phys. Rev. B

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“…In recent years, the possibility of dissipative soliton train self-generation in the MW feedback oscillators with the ferromagnetic film was demonstrated [3]- [10]. Such MW pulse trains are formed because of synchronization and frequency filtration of spectral components of a complex-modulated MW signal.…”

Section: Introductionmentioning

confidence: 99%

Dissipative Soliton Oscillator With a Nonlinear Spin Wave Transmission Line and a Signal-to-Noise Enhancer in the Feedback Loop

et al. 2012

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This study reports on a dissipative soliton oscillator utilizing two nonlinear magnetostatic spin wave (MSW) devices in a feedback loop. Both nonlinear MSW devices [a spin wave transmission line (TL) and a signal-to-noise enhancer (SNE)] operate in the frequency band where three-wave parametric processes are allowed. Self-generation of a complex-modulated MW signal is caused by nonlinearity of the spin wave TL. The SNE carries out a passive locking of the spin wave self-modulation frequencies and forms the dissipative soliton trains. It is shown, that electronic control of a repetition interval and pulse ratio of dissipative solitons is realized by the change of a klystron beam current.

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“…Using (11)(12)(13)(14)(15) for given values of the excitation frequency ω = ω 0 (determined by the frequency of the external microwave signal, the bias magnetic field H, and the saturation magnetization of the material M 0 ), it is easy to calculate the dependence of the direction of the group velocity on the direction of the phase velocity in the excited wave beam θ = f (ϕ). This dependence, calculated for the parameters of the experiment described below, is presented in Fig.…”

Section: Basics Of Nonlinear Spin-wave Phenomena In Magnetic Filmsmentioning

confidence: 99%

“…These processes can be used to design a new generation of nonlinear spinwave signal-processing devices that are magnetically tunable in a wide frequency range and could be easily integrated into modern planar technologies. In particular, such devices include frequency-selective limiters [7]; signal-to-noise enhancers [7,8,9]; nonresonant and resonant convolvers [10,11]; recently developed active ring soliton generators [12]; and active delay lines for pulse amplification, phase conjugation, and pulse shaping [13,14,15].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Spinwaves in One- and Two-Dimensional Magnetic Waveguides

Slavin

Demokritov

Hillebrands

Topics in Applied Physics

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Abstract. We discuss the spatial and temporal distribution of linear and nonlinear spinwave excitations in two-dimensional films and in quasi-one-dimensional waveguides made of yttrium-iron garnet (YIG). The reported experiments were performed using the recently developed space-and time-resolved Brillouin light scattering technique. We report experiments on the propagation and diffraction of two-dimensional beams and pulses of dipolar spinwaves (backward-volume magnetostatic waves (BVMSW)) excited in tangentially magnetized YIG films. In the nonlinear regime, stationary and nonstationary self-focusing effects are observed. Diffraction of a stationary BVMSW beam, having a finite transverse aperture, leads to self-focusing at one spatial point. Diffraction of a finite duration (non-stationary) BVMSW pulse-beam leads to space-time self-focusing and formation of strongly localized two-dimensional wave packets -spinwave bullets. The mode properties are illustrated by collision experiments of both quasi-one-dimensional spinwave envelope solitons and of two-dimensional spinwave bullets. Numerical modeling of the diffraction process using a direct numerical integration method of the two-dimensional nonlinear Schrödinger equation provides a good qualitative explanation of the observed phenomena.

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Excitation of bright and dark microwave magnetic envelope solitons in a resonant ring

Cited by 22 publications

References 9 publications

Spatial evolution of multipeaked microwave magnetic envelope solitons in yttrium iron garnet thin films

Spatial evolution of multipeaked microwave magnetic envelope solitons in yttrium iron garnet thin films

Dissipative Soliton Oscillator With a Nonlinear Spin Wave Transmission Line and a Signal-to-Noise Enhancer in the Feedback Loop

Nonlinear Spinwaves in One- and Two-Dimensional Magnetic Waveguides

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