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Optical forces have been fruitfully applied in a broad variety of areas that not only span the traditional scientific fields such as physics, chemistry, and biology, but also in more applied fields. It is customary and useful to split the…

Optics · Physics 2015-05-28 Junjie Du , Chi-Hong Yuen , Kun Ding , Guiqiang Du , Zhifang Lin , C. T. Chan , Jack Ng

Optical manipulation of micro- and nanoparticles near surfaces is fundamental for applications in sensing and microfluidics, yet controlling particle-surface interactions remains challenging. Here we experimentally investigate light-induced…

Light-actuated motors, vehicles, and even space sails have drawn tremendous attention for basic science and applications in space, biomedical, and sensing domains. Optical bound states in the continuum (BIC) are topological singularities of…

Optics · Physics 2022-04-06 Haoye Qin , Walid Redjem , Boubacar Kante

Particles trapped by optical tweezers, behaving as mechanical oscillators in an optomechanical system, have found tremendous applications in various disciplines and are still arousing research interest in frontier and fundamental physics.…

Optics · Physics 2023-07-21 Lei-Ming Zhou , Yaqiang Qin , Yuanjie Yang , Yuqiang Jiang

We introduce optically tunable surfaces based upon metallic gold nanoparticles trapped in open, water-filled gold cavities. The optical properties of the surfaces change dramatically with the presence and location of the particles inside…

Materials Science · Physics 2008-11-25 R. Sainidou , F. J. García de Abajo

Optical logic gates are fundamental blocks of optical computing to accelerate information processing. While significant progress has been achieved in recent years, existing implementations typically rely on dedicated structures that are…

Optics · Physics 2022-08-30 Zhipeng Yu , Yuchen Song , Tianting Zhong , Huanhao Li , Wei Zheng , Puxiang Lai

Light-matter interactions generally involve momentum exchange between incident photons and the target object giving rise to optical forces and torques. While typically weak, they become significant at the nanoscale, driving intense research…

Optics · Physics 2025-10-03 Guillermo Serrera , Yoshito Y. Tanaka , Pablo Albella

Transformation optics has recently attracted extensive interest, since it provides a novel design methodology for manipulating light at will. Although transformation optics in principle embraces all forms of electromagnetic phenomena on all…

Optics · Physics 2015-05-18 Yongmin Liu , Thomas Zentgraf , Guy Bartal , Xiang Zhang

Optomechanical manipulation of nanoparticles enabling ultimate control over their 3D motion is nowadays one of the most highly demanded links between optics, biology, medicine, microfluidics, etc., paving the way for a plethora of emerging…

Optics · Physics 2020-01-08 D. A. Dolinina , A. S. Shalin , A. V. Yulin

The quintessential hallmark distinguishing metasurfaces from traditional optical components is the engineering of subwavelength meta-atoms to manipulate light at will. Enabling this freedom, in a reverse manner, to control objects…

The calculation of optical force density distribution within a material is challenging at the nanoscale, where quantum and non-local effects emerge and macroscopic parameters such as permittivity become ill-defined. We demonstrate that the…

Optics · Physics 2018-04-10 Kun Ding , C. T. Chan

Light forces induced by scattering and absorption in elastic dielectrics lead to local density modulations and deformations. These perturbations in turn modify light propagation in the medium and generate an intricate nonlinear response. We…

Optics · Physics 2012-11-01 Matthias Sonnleitner , Monika Ritsch-Marte , Helmut Ritsch

We theoretically investigate the generation of far-field propagating optical beams with a desired orbital angular momentum by using an archetypical magnetoplasmonic tip surrounded by a gold spiral slit. The use of a magnetic material can…

The development of synthetic microswimmers has advanced our understanding of the fundamental self-propelled mechanisms of living systems. However, there are scarce studies at the microscale within highly structured anisotropic media, such…

Soft Condensed Matter · Physics 2024-05-08 Antonio Tavera-Vázquez , Andrés Córdoba , Sam Rubin , Vincenzo Vitelli , Juan J. de Pablo

Capillary interactions can be used to direct assembly of particles adsorbed at fluid-fluid interfaces. Precisely controlling the magnitude and direction of capillary interactions to assemble particles into favoured structures for materials…

Soft Condensed Matter · Physics 2016-07-11 Qingguang Xie , Gary B. Davies , Jens Harting

An all-optical method of ultrafast spin rotation is put forward to precisely manipulate the polarization of relativistic charged particle beams of leptons or ions. In particular, laser-driven dense ultrashort beams are manipulated via…

Plasma is an attractive medium for generating strong microscopic magnetic structures and tunable electromagnetic radiation with predictable topologies due to its extraordinary ability to sustain and manipulate high currents and strong…

Herein we demonstrate the ability to optically tune the mobility of electrically powered Janus particles (JP) that are half coated with various Zinc Oxide (ZnO) semiconducting layers, i.e. polycrystalline, amorphous and amorphous with a…

Materials Science · Physics 2022-07-18 Matan Zehavi , Daniel Sofer , Touvia Miloh , Orlin Velev , Gilad Yossifon

We report the first study on the optical force exerted by an evanescent wave on a small sphere with both electric and magnetic response to the incident field, immersed in an arbitrary nondissipative medium. New expressions and effects from…

Optics · Physics 2016-11-26 M. Nieto-Vesperinas , J. J. Saenz

The use of nanophotonics for optical manipulation has continuously attracted interest in both fundamental research and practical applications, due to its significantly enhanced capabilities at the nanoscale. In this work, we showed that…

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