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We report the motion of individual magnetic Quincke rollers composed of silica particles doped with superparamagnetic iron oxide nanoparticles, whose activity arises from the coupling between Quincke rolling and an externally applied…

Soft Condensed Matter · Physics 2026-04-14 Zoran M. Cenev , Ville S. I. Havu , Jaakko V. I. Timonen

We investigate the multiphoton pair production in circularly polarized field via two level model. There appears obvious discrete ring structures in the momentum distribution of the created particles, in which the ring radius is mainly…

High Energy Physics - Phenomenology · Physics 2025-11-18 Hong-Hao Fan , Lie-Juan Li , Zhi-Hang Yao , Orkash Amat , Suo Tang , Bai-Song Xie

We describe theoretically the resonant optical excitation of a trion with circularly polarized light and discuss how this trion permits the read-out of a single electron spin through a recycling transition. Optical pumping through…

Materials Science · Physics 2007-05-23 A. Shabaev , Al. L. Efros , D. Gammon , I. A. Merkulov

We use millimeter wave radiation to manipulate the populations of the energy levels of a single crystal molecular magnet Fe8. When a continuous wave radiation is in resonance with the transitions from the ground state to the first excited…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 M. Bal , Jonathan R. Friedman , Y. Suzuki , K. Mertes , E. M. Rumberger , D. N. Hendrickson , Y. Myasoedov , H. Shtrikman , N. Avraham , E. Zeldov

A magnetometric technique is demonstrated that may be suitable for precision measurements of fields ranging from the sub-microgauss level to above the Earth field. It is based on resonant nonlinear magneto-optical rotation caused by atoms…

Atomic Physics · Physics 2009-11-07 D. Budker , D. F. Kimball , V. V. Yashchuk , M. Zolotorev

We show that the Weibel or currente filamentation instability can lead to the emission of circularly polarized radiation. Using particle-in-cell (PIC) simulations and a radiation post-processing numerical algorithm, we demonstrate that the…

Plasma Physics · Physics 2021-02-24 U. Sinha , J. Martins , J. Vieira , K. M. Schoeffler , R. A. Fonseca , L. O. Silva

Detecting the internal state of polar molecules is a substantial challenge when standard techniques such as resonance-enhanced multi photon ionization (REMPI) or laser-induced fluorescense (LIF) do not work. As this is the case for most…

Atomic Physics · Physics 2014-12-01 Rosa Glöckner , Alexander Prehn , Gerhard Rempe , Martin Zeppenfeld

We report on hyperpolarization of quadrupolar (I=3/2) 131Xe via spin-exchange optical pumping. Observations of the 131Xe polarization dynamics show that the effective alkali-metal/131Xe spin-exchange cross-sections are large enough to…

Photons carrying a well-defined orbital angular momentum have been proven to modify spectroscopic selection rules in atomic matter. Excitation profiles of electric quadrupole transitions have been measured with single trapped $^{40}$Ca$^+$…

Twisted light beams, or optical vortices, have been used to drive the circular motion of microscopic particles in optical tweezers and have been shown to generate vortices in quantum gases. Recent studies have established that electric…

Quantum Physics · Physics 2021-07-20 Smail Bougouffa

A large body of knowledge about magnetism is attained from models of interacting spins, which usually reside on magnetic ions. Proposals beyond the ionic picture are uncommon and seldom verified by direct observations in conjunction with…

Engineering local angular momentum of structured light fields in real space enables unprecedented applications in many fields, in particular for the realization of unidirectional robust transport in topological photonic crystals with…

Optics · Physics 2017-12-19 Wei-Min Deng , Xiao-Dong Chen , Fu-Li Zhao , Jian-Wen Dong

We report the observation of quantized translational and rotational motion of molecular hydrogen inside the cages of C60. Narrow infrared absorption lines at the temperature of 6K correspond to vibrational excitations in combination with…

Incorporating multifunctionality along with the spin-related phenomenon in a single device is of great interest for the development of next generation spintronic devices. One of these challenges is to couple the photo-response of the device…

We analyze the effect of bichromatic microwave irradiation on the magnetoresistivity of a two dimensional electron system. We follow the model of microwave driven Larmor orbits in a regime where two different microwave lights with different…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Jesus Inarrea , Gloria Platero

Twisted photons carrying orbital angular momentum, which have potential applications spanning diverse fields, have been extensively studied since the theoretical work of Allen \textit{et al}. in 1992. Various methods for direct producing…

The manipulation of solid states using intense infrared or terahertz light fields is a pivotal area in contemporary ultrafast photonics research. While conventional circular polarization has been well explored, the potential of…

Optics · Physics 2024-08-08 Kotaro Ogawa , Natsuki Kanda , Yuta Murotani , Ryusuke Matsunaga

The magnetic field induced circular polarization of near infrared photoluminescence in Bi-doped pure silica glass was studied in the spectral range of 660 - 1600 nm covering three excited state levels. The highest degree of magnetic…

Materials Science · Physics 2015-07-03 Oleksii Laguta , Hicham El Hamzaoui , Mohamed Bouazaoui , Vladimir B. Arion , Igor Razdobreev

The rotary motor of bacteria is a natural nano-technological marvel that enables cell locomotion by powering the rotation of semi-rigid helical flagellar filaments in fluid environments. It is well known that the motor operates essentially…

Biological Physics · Physics 2018-10-23 Debasish Das , Eric Lauga

Magneto conductivities in Weyl semimetals (WSM) in presence of small fields are studied using quasi-classical Boltzmann transport equations (BTE). Following such formalism here we consider irradiation via circularly polarized light on a…

Strongly Correlated Electrons · Physics 2022-10-11 Rounak Sen , Satyaki Kar
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