Nonlinear Dynamics of Chirped Pulse Excitation and Dissociation of Diatomic Molecules

Liu, Wing‐Ki; Wu, Binruo; Yuan, Jian‐Min

doi:10.1103/physrevlett.75.1292

Cited by 83 publications

(57 citation statements)

References 9 publications

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“…Autoresonant excitation has been observed in a wide variety of environments, including atomic systems [18,19], plasmas [20,21], fluids [22], and semiconductor quantum wells [23]. Some authors also noticed the beneficial effect of a chirped pulse on the magnetization dynamics in a nanoparticle [24][25][26], but lacked the analytical tools provided by the autoresonance theory.…”

Section: Introductionmentioning

confidence: 99%

Autoresonant control of the magnetization switching in single-domain nanoparticles

Klughertz¹,

Hervieux

Manfredi

2014

J. Phys. D: Appl. Phys.

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The ability to control the magnetization switching in nanoscale devices is a crucial step for the development of fast and reliable techniques to store and process information. Here we show that the switching dynamics can be controlled efficiently using a microwave field with slowly varying frequency (autoresonance). This technique allowed us to reduce the applied field by more than 30% compared to competing approaches, with no need to fine-tune the field parameters. For a linear chain of nanoparticles the effect is even more dramatic, as the dipolar interactions tend to cancel out the effect of the temperature. Simultaneous switching of all the magnetic moments can thus be efficiently triggered on a nanosecond timescale. * Electronic address: manfredi@unistra.fr

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Section: Introductionmentioning

confidence: 99%

Autoresonant control of the magnetization switching in single-domain nanoparticles

Klughertz¹,

Hervieux

Manfredi

2014

J. Phys. D: Appl. Phys.

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“…This phenomenon has been observed and studied in many applications, including atomic systems [23,24], plasmas [25,26], fluids [27], and semiconductor quantum wells [28]. By using methods in the theory of AR and analyzing the associated phase space dynamics we will for the first time calculate the efficiency of the OC process.…”

Section: Introductionmentioning

confidence: 99%

Capture into resonance and phase-space dynamics in an optical centrifuge

Armon

Frièdland

2016

Phys. Rev. A

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The process of capture of a molecular enesemble into rotational resonance in the optical centrifuge is investigated. The adiabaticity and phase space incompressibility are used to find the resonant capture probability in terms of two dimensionless parameters P1,2 characterising the driving strength and the nonlinearity, and related to three characteristic time scales in the problem. The analysis is based on the transformation to action-angle variables and the single resonance approximation, yielding reduction of the three-dimensional rotation problem to one degree of freedom. The analytic results for capture probability are in a good agreement with simulations. The existing experiments satisfy the validity conditions of the theory.

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“…We investigate the effects of linearly chirped pulses with different shapes on the molecules. The linear chirped pulses is successfully used to study vibrational excitation and dissociation of the molecules (Liu et al, 1995;Lin et al, 1998). Furthermore, a linearly chirped pulse can be readily be prepared in the laboratory (Witte et al, 2003;Balling et al, 1994).…”

Section: Triatomic Moleculesmentioning

confidence: 99%

Multiphoton Selective Excitation and Analytical Control of Small Molecules in Intense Laser Fields: an Algebraic Model

Zheng¹

2010

Laser Pulse Phenomena and Applications

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Nonlinear Dynamics of Chirped Pulse Excitation and Dissociation of Diatomic Molecules

Cited by 83 publications

References 9 publications

Autoresonant control of the magnetization switching in single-domain nanoparticles

Autoresonant control of the magnetization switching in single-domain nanoparticles

Capture into resonance and phase-space dynamics in an optical centrifuge

Multiphoton Selective Excitation and Analytical Control of Small Molecules in Intense Laser Fields: an Algebraic Model

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