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Separation of the two mirror images of a chiral molecule, the enantiomers, is a historically complicated problem of major relevance for biological systems. Since chiral molecules are optically active, it has been speculated that strong…

Chemical Physics · Physics 2024-10-23 Rosario R. Riso , Matteo Castagnola , Enrico Ronca , Henrik Koch

We demonstrate a left-right asymmetry control of the photo\-electron angular distribution in multi\-photon ionization of Li atoms by a bichromatic laser field. By delaying the fundamental (780 nm) and its second harmonic relative to each…

Atomic Physics · Physics 2024-05-20 Silva Mezinska , Alexander Dorn , Thomas Pfeifer , Klaus Bartschat

In solid state physics, any phase transition is commonly observed as a change in the microscopic distribution of charge, spin, or current. Here we report the nature of an exotic order parameter inherent in the localized electron orbitals…

Strongly Correlated Electrons · Physics 2023-07-03 Shintaro Hoshino , Michi-To Suzuki , Hiroaki Ikeda

We investigate the different facets of ion acceleration by a relativistically intense circularly polarized laser pulse interacting with thin near-critical density plasma targets. Our simulations establish that plasma density gradient and…

Plasma Physics · Physics 2023-07-28 Shivani Choudhary , Sudipta Mondal , Daniele Margarone , Subhendu Kahaly

We show theoretically with an accurate spin Hamiltonian describing the multiferroic Mn perovskites that the application of the picosecond optical pulse with a terahertz frequency can switch the spin chirality through intensely exciting the…

Strongly Correlated Electrons · Physics 2010-10-29 Masahito Mochizuki , Naoto Nagaosa

We propose an enantioselective scheme to sort homogeneous chiral particles using optical tweezers. For a certain range of material parameters, we show that a highly focused circularly-polarized laser beam traps particles of a specific…

Optics · Physics 2023-07-19 R. Ali , F. A. Pinheiro , R. S. Dutra , F. S. S. Rosa , P. A. Maia Neto

Chiral molecules can selectively transport electrons of a particular spin orientation, yet the underlying mechanism remain poorly understood. Here, we present theoretical evidence that electrons propagating through chiral materials with…

Materials Science · Physics 2024-03-01 Xiaoming Wang , Yeming Xian , Yanfa Yan

We present a comprehensive study of enantioselective orientation of chiral molecules excited by a pair of delayed cross-polarized femtosecond laser pulses. We show that by optimizing the pulses' parameters, a significant (~ 10%) degree of…

Optics · Physics 2022-07-20 Long Xu , Ilia Tutunnikov , Yehiam Prior , Ilya Sh. Averbukh

Pulsed laser excitation causes the luminescence of Nitrogen Vacancy centers in diamond to unexpectedly decrease with increasing pulse energy. This decrease is observed in both the negatively charged and neutral centers and is caused by…

Mesoscale and Nanoscale Physics · Physics 2017-12-22 Robert Chapman , Taras Plakhotnik

Chiral light matter interaction enables new fundamental researches and applications of light. The interaction has traditionally faced challenges in low directionality and efficiency based on spin orbit interaction of light in microscopic…

Applied Physics · Physics 2019-12-10 Liang Fang , Haozhi Luo , Xiaoping Cao , Shuang Zheng , Xinlun Cai , Jian Wang

Distinguishing between the left- and right-handed versions of a chiral molecule (enantiomers) is vital, but also inherently difficult. Traditional optical methods using elliptically or circularly polarized light rely on weak linear effects…

Optics · Physics 2022-06-08 Laura Rego , David Ayuso

We demonstrate that electric-dipole scatterers can mimic chiral light-matter interaction by generating far-field circular polarization upon scattering, even though the optical chirality of the incident field as well as that of the scattered…

Optics · Physics 2019-06-12 Sergey Nechayev , Peter Banzer

We develop photoelectron interferometry based on laser-assisted extreme ultraviolet ionization for flexible and robust control of photoelectron circular dichroism in randomly oriented chiral molecules. A comb of XUV photons ionizes a sample…

Magnetic fields break the symmetry of the interaction of atoms with photons with different polarizations, yielding chirality and anisotropy properties. The dependence of the absorption spectrum on the polarization, a phenomenon known as…

Solar and Stellar Astrophysics · Physics 2025-01-08 René D. Rohrmann

The H1 photonic crystal cavity supports two degenerate dipole modes of orthogonal linear polarization which could give rise to circularly polarized fields when driven with a $\pi$/$2$ phase difference. However, fabrication errors tend to…

Optics · Physics 2021-11-09 C. F. Fong , Y. Ota , Y. Arakawa , S. Iwamoto , Y. K. Kato

Coherence among rotational ion channels during photoionization is exploited to control the anisotropy of the resulting photoelectron angular distributions at specific photoelectron energies. The strategy refers to a robust and single…

Chemical Physics · Physics 2019-09-11 R. Chamakhi , M. Telmini , O. Atabek , E. Charron

Chirality is one of the most fundamental properties of many physical, chemical and biological systems. However, the mechanisms underlying the onset and control of chiral symmetry are largely understudied. We investigate possibility of…

Pattern Formation and Solitons · Physics 2015-06-19 Bing-Wei Li , Mei-Chun Cai , Hong Zhang , Alexander V. Panfilov , Hans Dierckx

Elliptical dichroism is known in atomic photoionization as the difference in the photoelectron angular distributions produced in nonlinear ionization of atoms by left- and right-handed elliptically polarized light. We theoretically…

Atomic Physics · Physics 2018-08-07 J. Hofbrucker , A. V. Volotka , S. Fritzsche

The chiral-induced spin selectivity (CISS) effect, a phenomenon where the chirality of molecules imparts significant spin selectivity to electron transfer processes, has garnered increasing interest among the chemistry, biology, and physics…

Chemical Physics · Physics 2025-09-05 Tian-Yi Zhang , Yue Mao , Ai-Min Guo , Qing-Feng Sun

Detecting and controlling the chirality of materials play an essential role in exploring nature, providing new avenues for material creation, discrimination, and manipulation. In such tasks, chiral reagents are essential in defining or…

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