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We study interaction of generic asymmetric molecules with a pair of strong time-delayed short laser pulses with crossed linear polarizations. We show that such an excitation not only provides unidirectional rotation of the most polarizable…

化学物理 · 物理学 2018-02-28 E. Gershnabel , I. Sh. Averbukh

The plasmonic investigation involves activating a multilayer consisting of silver, platinum, silica, and silicon. Hybrid waveguide and surface plasmon polariton modes define the device plasmonic activity. The presence of micrometric…

光学 · 物理学 2023-09-19 Giuseppina Simone

We study the response of optically trapped achiral and chiralised nematic liquid crystal droplets to linear as well as circular polarised light. We find that there is internal dissipation in rotating achiral nematic droplets trapped in…

软凝聚态物质 · 物理学 2015-05-18 Marjan Mosallaeipour , Yashodhan Hatwalne , N. V. Madhusudana , Sharath Ananthamurthy

X-ray single-photon ionization and fragmentation of the chiral molecule halothane (CHBrClCF${}_{3}$) from a racemic mixture have been investigated using the COLTRIMS (Cold Target Recoil Ion Momentum Spectroscopy) technique. Two important…

Chirality or handedness in condensed matter induces anomalous optical responses such as natural optical activity, rotation of the plane of light polarization, as a result of breaking of spatial-inversion symmetry. In this study, optical…

介观与纳米尺度物理 · 物理学 2018-05-11 Hideo Kawaguchi , Gen Tatara

We show how a spin polarization can be generated through the photo-induced electron transfer of an achiral donor-acceptor complex following chiral light excitation. In particular, we illustrate the basic energetic and symmetry requirements…

化学物理 · 物理学 2026-03-10 Sindhana Pannir-Sivajothi , David T. Limmer

The discovery of the chiral induced spin selectivity effect has provided a novel tool to study how active physical and chemical mechanism may differ in chiral enantiomers, however, the origin of the effect itself is yet an open question. In…

介观与纳米尺度物理 · 物理学 2026-04-17 J. Fransson

Recently, Tang and Cohen (Science 332, 333, 2011) have demonstrated a scheme to enhance the chiral response of molecules, which relies on the use of circularly polarized light in a standing wave configuration. Here we show a new type of…

光学 · 物理学 2012-06-07 Carmelo Rosales-Guzmán , Karen Volke-Sepulveda , Juan P. Torres

We show that the stacks of two-dimensional semiconductor crystals with the chiral packing exhibit optical activity and circular dichroism. We develop a microscopic theory of these phenomena in the spectral range of exciton transitions which…

介观与纳米尺度物理 · 物理学 2017-11-17 Alexander V. Poshakinskiy , Dmitrii R. Kazanov , Tatiana V. Shubina , Sergey A. Tarasenko

An interesting class of molecules is that in which the molecules do not possess a stereogenic center but can become chiral due to their spatial arrangement. These molecules can be seen as chiral conformers, whose two non-superimposable…

化学物理 · 物理学 2021-06-11 Cristóbal Pérez , Amanda L. Steber , Anna Krin , Melanie Schnell

A mechanism is explored whereby intense laser radiation induces an optical force between the constituent atoms of a molecule. In the case of a diatomic molecule the effect results in a modification of the vibrational potential, and using…

光学 · 物理学 2007-05-23 D. L. Andrews R. G. Crisp

Vacuum-stimulated Raman transitions are driven between two magnetic substates of a rubidium-87 atom strongly coupled to an optical cavity. A magnetic field lifts the degeneracy of these states, and the atom is alternately exposed to laser…

量子物理 · 物理学 2007-05-23 T. Wilk , S. C. Webster , H. P. Specht , G. Rempe , A. Kuhn

Geometrical chirality is a universal property encountered on very different length scales ranging from geometrical shapes of living organisms to protein and DNA molecules. Interaction of chiral matter with chiral light - that is,…

光学 · 物理学 2022-01-25 Kirill Voronin , Alexey Taradin , Maxim V. Gorkunov , Denis G. Baranov

We suggest a technique to induce effective, controllable interactions between atoms that is based on Raman scattering into an optical mode propagating with a slow group velocity. The resulting excitation corresponds to the creation of…

量子物理 · 物理学 2009-11-07 A. Andre , L. -M. Duan , M. D. Lukin

We theoretically investigate how the orbital angular momentum of light can affect a chiral magnetic order. Here, we consider a metallic chiral helimagnet, which is under stationary radiation of a resonant optical vortex beam. We propose a…

介观与纳米尺度物理 · 物理学 2021-05-27 Yutaro Goto , Hajime Ishihara , Nobuhiko Yokoshi

Using optical orientation to manipulate magnetic moments in matter with light is a key objective in opto-spintronics, however, realizations of such control on ultrafast timescales are limited. Here, we report ultrafast optical control of…

Chiral magnetism is a fascinating quantum phenomena that has been found in low-dimensional magnetic materials. It is not only interesting for understanding the concept of chirality, but also important for potential applications in…

量子气体 · 物理学 2018-07-12 Bo Liu , Peng Zhang , Hong Gao , Fuli Li

We consider an atom inside a ring cavity, where a plane-wave cavity field together with an external coherent laser beam induces a two-photon Raman transition between two hyperfine ground states of the atom. This cavity-assisted Raman…

量子气体 · 物理学 2015-05-28 Lin Dong , Chuanzhou Zhu , Han Pu

Optically active achiral metasurfaces offer a promising way to detect chiral molecules based on chiroptic methods. The combination of plasmonic enhanced circular dichroism and reversible optical activity would boost the sensitivity and…

Chirality is a fundamental asymmetry phenomenon, with chiral optical elements exhibiting asymmetric response in reflection or absorption of circularly polarized light. Recent realizations of such elements include nanoplasmonic systems with…