Stereo correlated dynamics in the energy transfer process of aligned N2 (A 3Σu+) + oriented NO (X 2Π, Ω = 1/2) → NO (A 2Σ+) + N2 (X 1Σg+)

Ohoyama, Hiroshi; Maruyama, Shigeo

doi:10.1063/1.4739273

Cited by 7 publications

(12 citation statements)

References 47 publications

(55 reference statements)

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“…Strebel et al studied elastic collisions of a beam of SF 6 , decelerated using a rotating nozzle, with trapped ultracold Li atoms [691]. Ohoyama and coworkers studied collisions between polyatomic molecules oriented by an electric hexapole with molecules and atoms aligned by a magnetic hexapole [692][693][694].…”

Section: B Towards Controlled Chemistrymentioning

confidence: 99%

Manipulation of molecules with electromagnetic fields

et al. 2013

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I. INTRODUCTIONThe past few decades have witnessed remarkable developments of laser techniques setting the stage for new areas of research in molecular physics. It is now possible to interrogate molecules in the ultrafast and ultracold regimes of molecular dynamics and the measurements of molecular structure and dynamics can be made with unprecedented precision. Molecules are inherently complex quantum-mechanical systems. The complexity of molecular structure, if harnessed, can be exploited for yet another step forward in science, potentially leading to technology for quantum computing, quantum simulation, precise field sensors, and new lasers.The goal of the present article is to review the major developments that have led to the current understanding of molecule -field interactions and experimental methods for manipulating molecules with electromagnetic fields. Molecule -field interactions are at the core of several, seemingly distinct, areas of molecular physics. This is reflected in the organization of this article, which includes sections on Field control of molecular beams, External field traps for cold molecules, Control of molecular orientation and molecular alignment, Manipulation of molecules by nonconservative forces, Ultracold molecules and ultracold chemistry, Controlled many-body phenomena, Entanglement of molecules and dipole arrays, and Stability of molecular systems in high-frequency super-intense laser fields. By combining these topics in the same review, we would like to emphasize that all this work is based on the same basic Hamiltonian.This review is also intended to serve as an introduction to the excellent collection of articles appearing in this same-titled volume of Molecular Physics [1-27]. These original contributions demonstrate the latest developments exploiting control of molecules with electromagnetic fields. The reader will be treated to a colourful selection of articles on topics as diverse as Chemistry in laser fields, Quantum dynamics in helium droplets, Effects of microwave and laser fields on molecular motion, Rydberg molecules, Molecular structure in external fields, Quantum simulation with ultracold molecules, and Controlled molecular interactions, written by many of the leading protagonists of these fields.This article is concerned chiefly with the effects of electromagnetic fields on low-energy rotational, fine-structure and translational degrees of freedom. There are several important research areas that are left outside the scope of this paper, most notably the large body of work on the interaction of molecules with attosecond laser pulses and high harmonic generation [28], coherent control of molecular dynamics [29] and optimal control of molecular processes [30]. We limit the discussion of resonant interaction of light with molecules to laser cooling strategies. We do not survey spectroscopy or transfer of population between molecular states. Even with these restrictions, this is a vast area to review, as is apparent from the number of references. We did our best to in...

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Section: B Towards Controlled Chemistrymentioning

confidence: 99%

Manipulation of molecules with electromagnetic fields

et al. 2013

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“…(A) Stereocorrelated reactivity and the alignment of NO (A 2 Σ + ) rotation cited from the references. , (i) NO (A 2 Σ + ) ( J ⊥ v R ) ↔ [N 2 (A 2 Σ + ) (axial and sideways) ↔ NO (X 2 Π) (axial)] and (ii) NO (A 2 Σ + ) ( J ∥ v R ) ↔ [N 2 (A 2 Σ + ) (oblique) ↔ NO (X 2 Π) (sideways)]. (B) The cross-sectional view of σ ( J v R , E ) in Figure at the two alignment conditions σ ( J ⊥ v R , E ), σ ( J ∥ v R , E ).…”

Section: Resultsmentioning

confidence: 99%

Collision Energy Dependent Cross Section and Rotational Alignment of NO (A ²Σ⁺) in the Energy-Transfer Reaction of N₂ (A³Σ_u⁺) + NO (X ²Π) → N₂ (X ¹Σ_g⁺) + NO (A ²Σ⁺)

Ohoyama

2014

J. Phys. Chem. A

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We have studied the collision energy dependent cross section and alignment of NO (A (2)Σ(+)) rotation in the energy-transfer reaction of N2 (A (3)Σ(u)(+)) + NO (X (2)Π) → N2 (X (1)Σ(g)(+)) + NO (A (2)Σ(+)) at the collision energy (E) region of 0.03-0.2 eV. NO (A (2)Σ(+)) emission in two linear polarization directions in the collision frame (parallel (∥) and perpendicular (⊥) with respect to the relative velocity vector (vR)) has been measured as a function of collision energy. NO (A (2)Σ(+)) rotation (J-vector) turns out to be aligned perpendicular to vR. In addition, collision energy is found to enhance the degree of alignment of NO (A (2)Σ(+)) rotation. The collision energy dependent cross sections σ(∥,(⊥))(E) (excitation functions) show a rapid fall-off following an initial rise with a threshold less than 0.02 eV. The excitation function at the parallel alignment of NO (A (2)Σ(+)) rotation, σ(J∥v(R), (E), is slightly shifted to the low collision energy region as compared with σ(J ⊥ vR, E). We propose that the rapid fall-off feature in the excitation function is attributed to the multidimensional nonadiabatic transitions.

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“…45−51 Recently, we succeeded to study the aligned N 2 (A 3 Σ u + ) + oriented NO (X 2 Π, Ω = 1 / 2 ) reaction as a function of the mutual orientational configuration between the two molecular reactants in the collision frame. 52 These led to the determination of the multi-dimensional steric opacity functions (stereo−vector correlations). Additionally, we studied another stereo−vector correlation between the alignment of NO (A 2 Σ + ) rotation and the reactant N 2 (A 3 Σ u + ) alignment in the collision frame.…”

Section: Introductionmentioning

confidence: 99%

“…The vector correlation related to mutual orientation configuration of two reactants (here, we call such a vector correlation as “stereo–vector correlation”) is expected to be an important index for the screening of a relevant degree-of-freedom in the multidegree of freedom reaction system. Recently, we succeeded to study the oriented Rg* ( 3 P 2 , M J = 2) atom + oriented molecule reactions as a function of the mutual orientational configuration between the two reactants in the collision frame by employing the state selecting hexapole techniques on both reactants. − Recently, we succeeded to study the aligned N 2 (A 3 Σ u + ) + oriented NO (X 2 Π, Ω = 1 / 2 ) reaction as a function of the mutual orientational configuration between the two molecular reactants in the collision frame . These led to the determination of the multi-dimensional steric opacity functions (stereo–vector correlations).…”

Section: Introductionmentioning

confidence: 99%

Atomic Alignment Effect on Reactivity and on Product Alignment in the Energy-Transfer Reaction of Oriented Ar (³P₂, 4s [3/2]₂, M_J = 2) + Kr (4p⁶, ¹S₀) → Ar (3p⁶, ¹S₀) + Kr (5p [3/2]₂)

Ohoyama

2015

J. Phys. Chem. A

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Steric effect for the formation of Kr (5p [3/2]₂) in the energy transfer reaction of Ar (³P₂, 4s [3/2]₂) + Kr has been studied by using an oriented Ar (³P₂, 4s [3/2]₂, M(J) = 2) beam at a collision energy of ∼0.09 eV. The emission intensity of Kr (5p [3/2]₂) is ca. 2 times enhanced when the angular momentum (J(Ar)) of Ar (³P₂) is aligned perpendicular to the relative velocity vector (v(R)). In addition, the Kr (5p [3/2]₂) emission is highly polarized parallel to v(R) (I(∥)/I(⊥) ∼ 1.2) when JAr is aligned perpendicular to v(R). The observed polarization moments indicate that the alignment of the unpaired Ar (3p) orbital of Ar (³P₂) to v(R), (Σ (|L′| = 0), Π (|L′| = 1)), dominates the energy transfer probability (σ(Π)(∥): σ(Σ)(∥): σ(Π)(⊥): σ(Σ)(⊥) = 0.49:1.33:0.55:1.23) and also the alignment of the Kr (5p) orbital of Kr (5p [3/2]₂) to v(R): the Σ-configuration of the Ar (3p) orbital leads to the parallel alignment (Σ-configuration) of the Kr(5p) orbital to v(R), conversely, the Π-configuration of Ar (3p) orbital leads to the perpendicular alignment (Π-configuration) of the Kr(5p) orbital. In addition, the selectivity of the alignment of the Kr (5p) orbital turns out to vary from perpendicular to parallel as the collision energy increases after a threshold down to 0.03 eV.

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Stereo correlated dynamics in the energy transfer process of aligned N2 (A 3Σu+) + oriented NO (X 2Π, Ω = 1/2) → NO (A 2Σ+) + N2 (X 1Σg+)

Cited by 7 publications

References 47 publications

Manipulation of molecules with electromagnetic fields

Manipulation of molecules with electromagnetic fields

Collision Energy Dependent Cross Section and Rotational Alignment of NO (A ²Σ⁺) in the Energy-Transfer Reaction of N₂ (A³Σ_u⁺) + NO (X ²Π) → N₂ (X ¹Σ_g⁺) + NO (A ²Σ⁺)

Atomic Alignment Effect on Reactivity and on Product Alignment in the Energy-Transfer Reaction of Oriented Ar (³P₂, 4s [3/2]₂, M_J = 2) + Kr (4p⁶, ¹S₀) → Ar (3p⁶, ¹S₀) + Kr (5p [3/2]₂)

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Stereo correlated dynamics in the energy transfer process of aligned N2 (A 3Σu+) + oriented NO (X 2Π, Ω = 1/2) → NO (A 2Σ+) + N2 (X 1Σg+)

Cited by 7 publications

References 47 publications

Manipulation of molecules with electromagnetic fields

Manipulation of molecules with electromagnetic fields

Collision Energy Dependent Cross Section and Rotational Alignment of NO (A 2Σ+) in the Energy-Transfer Reaction of N2 (A3Σu+) + NO (X 2Π) → N2 (X 1Σg+) + NO (A 2Σ+)

Atomic Alignment Effect on Reactivity and on Product Alignment in the Energy-Transfer Reaction of Oriented Ar (3P2, 4s [3/2]2, MJ = 2) + Kr (4p6, 1S0) → Ar (3p6, 1S0) + Kr (5p [3/2]2)

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Collision Energy Dependent Cross Section and Rotational Alignment of NO (A ²Σ⁺) in the Energy-Transfer Reaction of N₂ (A³Σ_u⁺) + NO (X ²Π) → N₂ (X ¹Σ_g⁺) + NO (A ²Σ⁺)

Atomic Alignment Effect on Reactivity and on Product Alignment in the Energy-Transfer Reaction of Oriented Ar (³P₂, 4s [3/2]₂, M_J = 2) + Kr (4p⁶, ¹S₀) → Ar (3p⁶, ¹S₀) + Kr (5p [3/2]₂)