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We theoretically investigate the laser wavelength dependence of asymmetric dissociation of H$_2^+$. It is found that the electron localization in molecular dissociation is significantly manipulated by varying the wavelength of the driving…

Atomic and Molecular Clusters · Physics 2015-06-03 Kunlong Liu , Weiyi Hong , Qingbin Zhang , Peixiang Lu

Intermolecular bonds are weak compared to covalent bonds, but they are strong enough to influence the properties of large molecular systems. In this work, we investigate how strong light-matter coupling inside an optical cavity can modify…

Chemical Physics · Physics 2021-03-17 Tor S. Haugland , Christian Schäfer , Enrico Ronca , Angel Rubio , Henrik Koch

Two mechanisms of two-color (\omega + 2\omega) laser-induced field-free molecular orientation, based on the hyperpolarizability and ionization depletion, are explored and compared. The CO molecule is used as a computational example. While…

Atomic Physics · Physics 2012-09-14 Michael Spanner , Serguei Patchkovskii , Eugene Frumker , Paul Corkum

We investigate theoretically the dissociative ionization of a H2+ molecule using two ultrashort laser (pump-probe) pulses. The pump pulse prepares a dissociating nuclear wave packet on an ungerade surface of H2+. Next, an UV (or XUV) probe…

Quantum Physics · Physics 2013-05-29 Szczepan Chelkowski , André D. Bandrauk

We study the impact of an environment on the electromagnetic responses of a molecule in the presence of a dielectric medium. By applying the dipole-dipole coupling between the molecule's and the environment's degrees of freedom, we can…

Quantum Physics · Physics 2022-11-04 Johannes Fiedler , Kristian Berland , Stefan Yoshi Buhmann

Exciting electrons in solids with intense light pulses offers the possibility of generating new states of matter through nonthermal means and controlling their macroscopic properties on femto- to picosecond timescales. One way to manipulate…

Materials Science · Physics 2021-10-07 Alfred Zong , Anshul Kogar , Nuh Gedik

Effects of coupling between an molecular exciton and a surface plasmon (exciton-plasmon coupling) on the luminescence properties of the molecule and the surface plasmons are investigated using nonequilibrium Green's function method.…

Materials Science · Physics 2013-11-12 Kuniyuki Miwa , Mamoru Sakaue , Hideaki Kasai

It is well established that electronic conical intersections (CIs) in molecular systems can be induced by laser light, even in diatomic molecules. The emergence of these light-induced degeneracies leads to strong coupling among electronic,…

Atomic and Molecular Clusters · Physics 2026-03-12 Zoltán Király , Otabek Umarov , Csaba Fábri , Gábor J. Halász , Attila Tóth , Ágnes Vibók

The treatment of the previous paper is extended to molecular wires. Specifically, the effect of electron-vibrational interactions on the electronic transport induced by femtosecond $\omega+2\omega$ laser fields along unbiased molecular…

Quantum Physics · Physics 2009-11-13 Ignacio Franco , Moshe Shapiro , Paul Brumer

Benzene, with its sea of delocalized $\pi$-electrons in the valence orbitals, is identified as an example of a class of molecules that enable establishment of the correspondence between intense ion-induced and laser-light-induced fields in…

Atomic Physics · Physics 2009-11-06 D. Mathur

The tip of a scanning tunnelling microscope can inject hot electrons into a surface with atomic precision. Their subsequent dynamics and eventual decay can result in atomic manipulation of an adsorbed molecule, or in light emission from the…

Chemical Physics · Physics 2019-07-19 Rebecca M. Purkiss , Henry G. Etheridge , Peter A. Sloan , Kristina R. Rusimova

Periodically-modulated potentials in the form of light fields have previously been applied to induce reversible phase transitions in dilute colloidal systems with long-range interactions. Here we investigate whether similar transitions can…

Soft Condensed Matter · Physics 2009-11-13 Matthew C. Jenkins , Stefan U. Egelhaaf

We show that dressing of diatomic molecules by running laser waves gives rise to conical intersections (CIs). Due to presence of such CIs, the rovibronic molecular motions are strongly coupled. A pronounced impact of the CI on the spectrum…

Atomic Physics · Physics 2015-05-19 Milan Sindelka , Nimrod Moiseyev , Lorenz S. Cederbaum

We report on a theoretical study of a Cs$_2$ molecule illuminated by two lasers and show how it can result in novel quantum dynamics. We reveal that these interactions facilitate the bypass of the non-crossing rule, forming Light-Induced…

Chemical Physics · Physics 2024-05-21 Edgar Barriga , Luis E. F. Foa Torres , Carlos Cárdenas

We investigate the orientation dependence of high-order harmonic generation (HHG) from H$_2^+$ with different internuclear distances irradiated by intense laser fields both numerically and analytically. The calculated molecular HHG spectra…

Atomic Physics · Physics 2009-11-13 Yanjun Chen , Jie Liu , Bambi Hu

Collective scattering of spatially coherent radiation by separated point emitters induces inter-particle forces. For particles close to nano-photonic structures as, for example, nano-fibers, hollow core fibers or photonic waveguides, this…

Quantum Physics · Physics 2018-11-14 Daniela Holzmann , Matthias Sonnleitner , Helmut Ritsch

The toolbox for imaging molecules is well-equipped today. Some techniques visualize the geometrical structure, others the electron density or electron orbitals. Molecules are many-body systems for which the correlation between the…

The dynamics of excitons in disordered molecular solids is studied theoretically, taking into account migration between different sites, recombination, and dissociation into free charge carriers in the presence of an electric field. The…

Condensed Matter · Physics 2009-10-31 M. C. J. M. Vissenberg , M. J. M. de Jong

Molecular polaritons are the optical excitations which emerge when molecular transitions interact strongly with confined electromagnetic fields. Increasing interest in the hybrid molecular-photonic materials that host these excitations…

Mesoscale and Nanoscale Physics · Physics 2018-02-26 Raphael F. Ribeiro , Luis A. Martínez-Martínez , Matthew Du , Jorge Campos-Gonzalez-Angulo , Joel Yuen-Zhou

Strong light-matter interactions can be exploited to modify properties of quantum materials both in and out of thermal equilibrium. Recent studies suggest electromagnetic fields in photonic structures can hybridize with condensed matter…