Enhancing strong-field-induced molecular vibration with femtosecond pulse shaping

Bitter, M.; Shapiro, E. A.; Milner, Valery

doi:10.1103/physreva.86.043421

Cited by 9 publications

(6 citation statements)

References 47 publications

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“…A similar beating phenomenon to the one described here was observed experimentally by Ohmori et al [15], (see also [16]) where a strong delayed near-infrared excitation pulse, analogous to our second excitation pulse, was seen to cause beatings in the populations of individual vibrational levels belonging to the B-state of diatomic iodine, due to the interference between the elastic |v → |v → |v Rayleigh scattering and the inelastic |v ± 1 → |v → |v Raman scattering.…”

Section: Results and Analysissupporting

confidence: 88%

Linear response in the strong-field domain: ultrafast wave packet interferometry in the continuum

Han¹,

Shapiro²

2013

J. Phys. B: At. Mol. Opt. Phys.

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We demonstrate that there are cases in which the response of a molecular system to the effects of a strong laser field is linear. By numerically solving the quantum dynamics of a wave packet of photo-dissociated H, we show that the initial state depletion and the photodissociation yields to various final channels may at times be an essentially linear function of the laser peak intensity. We have also investigated the case when the excitation is performed with delayed pulses, where the linear response regime is accompanied by oscillations in the population of vibrational and rotational states as a function of the delay time. In keeping with the observation of linear response beyond the weak field perturbative limit, coherent control over branching ratios, which can only exist in the strong field regime, is also shown to be extensive.

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Section: Results and Analysissupporting

confidence: 88%

Linear response in the strong-field domain: ultrafast wave packet interferometry in the continuum

Han¹,

Shapiro²

2013

J. Phys. B: At. Mol. Opt. Phys.

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“…35 and is obtained at a negative chirp of φʺ ≃ −430 fs 2 and at the excitation wavenumbers of ≃ 19,660 cm −1 and ≃ 19,150 cm −1 (see Figure 2b). The enhancement of the vibrational coherence in the ground states therefore responds basically to the same phenomena that the one for the ground state population, i.e., the pump-dump intra-pulse mechanisms are promoted for negatively chirped pulses and suppressed for positive chirp.…”

Section: Main Results Obtained From the Simulationsmentioning

confidence: 99%

“…Closed-loop learning algorithms are exploited in CC to generate complex optical phases in order to optimize specific reaction pathways. CC has been used as a tool in the control of dynamic processes [17][18][19][20][21], and it explains how a specific state can be selectively populated, for example, to attain 100% population transfer [22][23][24][25], and recent studies have shown the possibility of having enhancements even higher than 100% [26][27][28][29][30][31][32][33][34][35]. QCS also exploits tailored excitation but differs from CC in its applications [30,36].…”

Section: Introductionmentioning

confidence: 99%

Quantum Control of Population Transfer and Vibrational States via Chirped Pulses in Four Level Density Matrix Equations

Afa

Serrat

2016

Applied Sciences

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Abstract:We investigate the effect of chirped excitation and the excitation detuning on the coherent control of population transfer and vibrational states in a four-level system. Density matrix equations are studied for optimally enhanced processes by considering specific parameters typical of oxazine systems. Our simulations show a strong dependence on the interplay between chirp and excitation detuning and predict enhancement factors up to 3.2 for population transfer and up to 38.5 for vibrational coherences of electronic excited states. The study of the dynamics of the populations and vibrational coherences involved in the four-level system allows an interpretation of the different enhancement/suppression processes observed.

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“…This chirped-PAP was also used to create superpositions of states in potassium atoms (Zhdanovich et al, 2009). However, attempts to implement the PAPscheme in a molecule have hitherto failed (Bitter et al, 2012). A recent proposal (Shore et al, 2016) suggests an implementation of a PAP analog in polarization optics, see Sec.…”

Section: F Hyper-raman Stirap (Stihrap)mentioning

confidence: 99%

Stimulated Raman adiabatic passage in physics, chemistry, and beyond

Vitanov¹,

Rangelov²,

Shore³

et al. 2017

Rev. Mod. Phys.

742

717

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The technique of stimulated Raman adiabatic passage (STIRAP), which allows efficient and selective population transfer between quantum states without suffering loss due to spontaneous emission, was introduced in 1990 (Gaubatz et al., J. Chem. Phys. 92, 5363, 1990). Since then STIRAP has emerged as an enabling methodology with widespread successful applications in many fields of physics, chemistry and beyond. This article reviews the many applications of STIRAP emphasizing the developments since 2000, the time when the last major review on the topic was written (Vitanov et al., Adv. At. Mol. Opt. Phys. 46, 55, 2001). A brief introduction into the theory of STIRAP and the early applications for population transfer within three-level systems is followed by the discussion of several extensions to multilevel systems, including multistate chains and tripod systems. The main emphasis is on the wide range of applications in atomic and molecular physics (including atom optics, cavity quantum electrodynamics, formation of ultracold molecules, etc.), quantum information (including single-and two-qubit gates, entangled-state preparation, etc.), solid-state physics (including processes in doped crystals, nitrogen-vacancy centers, superconducting circuits, semiconductor quantum dots and wells), and even some applications in classical physics (including waveguide optics, polarization optics, frequency conversion, etc.). Promising new prospects for STIRAP are also presented (including processes in optomechanics, precision experiments, detection of parity violation in molecules, spectroscopy of core-nonpenetrating Rydberg states, population transfer with X-ray pulses, etc.).

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Enhancing strong-field-induced molecular vibration with femtosecond pulse shaping

Cited by 9 publications

References 47 publications

Linear response in the strong-field domain: ultrafast wave packet interferometry in the continuum

Linear response in the strong-field domain: ultrafast wave packet interferometry in the continuum

Quantum Control of Population Transfer and Vibrational States via Chirped Pulses in Four Level Density Matrix Equations

Stimulated Raman adiabatic passage in physics, chemistry, and beyond

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