Optical trapping with focused surface waves
WebDe Gruyter WebJun 1, 1998 · Abstract. We suggest a modification of a single beam optical trap which enables more effective axial trapping of nanoparticles. We employed interference of an incident wave and the wave which is reflected by the bottom of the trapping cell to create a standing wave trap. The scattering force is strongly suppressed for a highly reflective ...
Optical trapping with focused surface waves
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WebTrapping metallic particles using focused Bloch surface waves Yifeng Xiang,a Xi Tang,a Yanan fu,b Fenya Lu,a Yan Kuai,a Changjun Min,*b Junxue Chen,c PEI WANG,a J. R. Lakowicz,d Xiaocong Yuan*b and Douguo Zhang*a aInstitute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, … WebNov 1, 1989 · Show abstract. Simultaneously assembling the functions of lenses and phase vortices into geometric metasurfaces on an ultra-compact platform can potentially be used for light trapping and edge imaging, helping to enhance their applications in polarized optical systems. Here, we propose and theoretically investigate an all-graphene geometric ...
WebThe forces and torques exerted by an optical trap can be computed by first calculating the electromagnetic field surrounding an illuminated object and then integrating the Maxwell stress tensor over its surface. ... This image can be decomposed into a set of plane waves, each of which is brought to a focus by the objective lens. WebFeb 24, 2024 · Near-field optical trapping can be realized with focused evanescent waves that are excited at the water–glass interface due to the total internal reflection, or with …
WebJan 2, 2024 · Here we demonstrate that metallic particles can be trapped stably using focused Bloch surface waves that propagate in the near-field region of a dielectric … WebApr 12, 2024 · The experiments are further extended to wave interference photonic crystals and random pyramids, paving a way to estimate the photogeneration rate of diverse surface light-trapping topologies by collecting nearly all photocarriers. The insights reported here provide a systematic experimental basis to investigate interfacial effects on ...
WebFeb 24, 2024 · When power increased from 20 mW to 60 mW, optical trapping force raised from 4.9 ± 0.4 pN to14.2 ± 1.1 pN, and optothermal trapping force raised from 5.8 ± 0.7 …
WebJan 1, 2024 · Focused Bloch surface waves can be excited efficiently using an annular beam with azimuthal polarization and a high-numerical-aperture objective. Numerical simulations were performed to calculate the optical forces loaded on a gold particle by focused Bloch surface waves and the results were consistent with those of the experimental observations. kuri matak matak jandi songWebNov 4, 2024 · Near‐field optical trapping can be realized with focused evanescent waves that are excited at the water–glass interface due to the total internal reflection, or with focused plasmonic waves ... java util包WebNov 28, 2016 · Optical trapping characteristics in the proximity of the beam waist and the impact of the focus position with respect to the surface are studied next. The Gaussian … java.util.zip 使用WebOct 19, 2024 · Free-space optical manipulation of matter waves. ( A) SCS can be achieved in free space by irradiation with two light plane waves of frequencies and angles satisfying the phase-matching condition ω 1 /ω 2 = ( c − v cos θ 2 )/ ( c − v cos θ 1 ). ( B) Atom CM spectra similar to those in Fig. 2B are then generated, with sidebands separated ... java util zip 解压WebFeb 24, 2024 · Near-field optical trapping can be realized with focused evanescent waves that are excited at the water-glass interface due to the total internal reflection, or with … java.util.zip.zipoutputstreamWebTwo kinds of surface waves are excited and focused to trap dielectric microbeads in liquid. The focused evanescent waves trap a single bead near the focused center, whereas the … java.util.zip.zipinputstreamWebAshkin blazed the trail in exhibiting the successful laser trapping of micrometer-sized dielectric particles through the deployment of two counter-propagating beams [].This approach proposes that a strongly focused laser beam can create a stable 3D trap, referred to as optical tweezers [], which have revolutionized the field of optical trapping.. Optical … kuri menu