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The paper investigates cold molecules formation in the photoassociation of two cold atoms by a strong laser pulse applied at short interatomic distances, which lead to a molecular dynamics taking place in the light-induced (adiabatic)…

Quantum Physics · Physics 2009-07-23 M. Vatasescu

Under quite generic assumptions the general expression is derived for the probability of circularly polarized photon emission from the longitudinally polarized electron and for the probability of pair creation of longitudinally polarized…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. N. Baier , V. M. Katkov

We prove that it is impossible to distinguish two spatially coinciding fluorescent molecules from a single rotating molecule using polarization-sensitive imaging, even if one modulates the polarization of the illumination or the detection…

Optics · Physics 2025-03-11 Yiyang Chen , Yuanxin Qiu , Matthew D. Lew

Controlling molecular reactivity by shaped laser pulses is a long-standing goal in chemistry. Here we suggest a direct optimal control approach which combines external pulse optimization with other control parameters arising in the upcoming…

Quantum Physics · Physics 2024-01-03 A. R. Ramos Ramos , E. W. Fischer , P. Saalfrank , O. Kühn

The strongly interacting system created in ultrarelativistic nuclear collisions behaves almost as an ideal fluid with rich patterns of the velocity field exhibiting strong vortical structure. Vorticity of the fluid, via spin-orbit coupling,…

Nuclear Experiment · Physics 2024-10-30 Takafumi Niida , Sergei A. Voloshin

We present theoretical calculations for polarization and ellipticity of high-order harmonics from aligned N$_2$, CO$_2$, and O$_2$ molecules generated by linearly polarized lasers. Within the rescattering model, the two polarization…

Atomic Physics · Physics 2010-12-13 Anh-Thu Le , R. R. Lucchese , C. D. Lin

We have produced ultracold, polar RbCs* molecules via photoassociation in a laser-cooled mixture of Rb and Cs atoms. Using a model of the RbCs* molecular interaction which reproduces the observed rovibrational structure, we infer decay…

Atomic Physics · Physics 2009-11-10 Andrew J. Kerman , Jeremy M. Sage , Sunil Sainis , David DeMille , Thomas Bergeman

We investigate the persistent orientation of asymmetric-top molecules induced by time-delayed THz pulses that are either collinearly or cross polarized. Our theoretical and numerical results demonstrate that the orthogonal configuration…

Chemical Physics · Physics 2023-12-05 Long Xu , Ilia Tutunnikov , Yehiam Prior , Ilya Sh. Averbukh

We propose and computationally study a method for simultaneously orienting the angular momentum of asymmetric top molecules along: 1) a laboratory-fixed direction; 2) the molecular intermediate moment of inertia axis; 3) the laser field…

Quantum Physics · Physics 2022-11-21 Emil J. Zak

We explore the role of laser induced anti-alignment in enhancing molecular orientation. A field-free enhanced orientation via anti-alignment scheme is presented, which combines a linearly polarized femtosecond laser pulse with a half-cycle…

Optics · Physics 2009-11-11 E. Gershnabel , I. Sh. Averbukh , Robert J. Gordon

We investigate the dynamical formation of crystalline states with systems of polar molecules or Rydberg atoms loaded into a deep optical lattice. External fields in these systems can be used to couple the atoms or molecules between two…

Quantum Gases · Physics 2015-03-13 J. Schachenmayer , I. Lesanovsky , A. Micheli , A. J. Daley

We show that congruent electric, magnetic and non-resonant optical fields acting concurrently on a polar paramagnetic (and polarisable) molecule offer possibilities to both amplify and control the directionality of the ensuing molecular…

Chemical Physics · Physics 2016-01-12 Ketan Sharma , Bretislav Friedrich

The effect of radiation polarization attended with the motion of spinning charge in the magnetic field could be viewed through the classical theory of self-interaction. The quantum expression for the polarization time follows from the…

High Energy Physics - Theory · Physics 2007-05-23 S. L. Lebedev

The alignment of permanent dipole moments and the resulting spontaneous orientation polarization (SOP) is commonly observed in evaporated neat films of polar organic molecules and leads to a so-called giant surface potential. In case of…

Materials Science · Physics 2025-05-01 Alexander Hofmann , Albin Cakaj , Lea Kolb , Yutaka Noguchi , Wolfgang Brütting

Upon film growth by physical vapor deposition, the preferential orientation of polar organic molecules can result in a non-zero permanent dipole moment (PDM) alignment, causing a macroscopic film polarization. This effect, known as…

Materials Science · Physics 2024-10-23 Albin Cakaj , Markus Schmid , Alexander Hofmann , Wolfgang Brütting

We show that electrons recolliding with the ionic core upon tunnel ionization of noble gas atoms driven by a strong circularly polarized laser field in combination with a counter-rotating second harmonic are spin polarized and that their…

Atomic Physics · Physics 2017-08-02 David Ayuso , Álvaro Jiménez-Galán , Felipe Morales , Misha Ivanov , Olga Smirnova

We theoretically consider the phenomenon of field-free long-lasting orientation of symmetric-top molecules ionized by two-color laser pulses. The anisotropic ionization produces a significant long-lasting orientation of the surviving…

Chemical Physics · Physics 2023-03-08 Long Xu , Ilia Tutunnikov , Yehiam Prior , Ilya Sh. Averbukh

The acceleration of ions in the interaction of circular polarized laser pulses with overdense plasmas is investigated. For circular polarization laser pulses, the quasi-equilibrium for electrons is established due to the light pressure and…

Accelerator Physics · Physics 2007-12-26 X. Q. Yan , C. Lin , Z. M. Sheng , Z. Y. Guo , B. C. Liu , Y. R. Lu , J. X. Fang , J. E. Chen

We demonstrate that the THz generation in air from a dual-color pulse, composed of the fundamental and second-harmonic waves, can be coherently controlled by field-free molecular alignment. By tuning its time delay to properly match various…

Optics · Physics 2015-05-19 Jian Wu , Yuqi Tong , Min Li , Haifeng Pan , Heping Zeng

We study polar molecule scattering in quasi-one-dimensional geometries. Elastic and reactive collision rates are computed as a function of collision energy and electric dipole moment for different confinement strengths. The numerical…

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