Results 21 to 30 of about 190,173 (286)
Nature Photonics, 2011 Theoretical analysis suggests that there exists an optical attractive force capable of “pulling” microparticles towards a light source. This backwards force is generated by using interference to optimize the scattering of light in the forwards direction.
Chen, Jun +3 more
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Optical trapping and critical Casimir forces [PDF]
Optical Manipulation and Structured Materials Conference, 2021 AbstractCritical Casimir forces emerge between objects, such as colloidal particles, whenever their surfaces spatially confine the fluctuations of the order parameter of a critical liquid used as a solvent. These forces act at short but microscopically large distances between these objects, reaching often hundreds of nanometers.
Agnese Callegari +3 more
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Wideband and high-efficiency spin-locked achromatic meta-device
Nanophotonics, 2022 Achromatic devices present unique capabilities in efficient manipulation of waves and have wide applications in imaging and communication systems. However, the research of achromatic devices is limited by the narrow bandwidth, low efficiency as well as ...
Cui Xingshuo +7 more
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Optical Force Stamping Lithography [PDF]
Nano Letters, 2011 Here we introduce a new paradigm of far-field optical lithography, optical force stamping lithography. The approach employs optical forces exerted by a spatially modulated light field on colloidal nanoparticles to rapidly stamp large arbitrary patterns comprised of single nanoparticles onto a substrate with a single-nanoparticle positioning accuracy ...
Spas Nedev +3 more
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Force-insensitive optical cavity [PDF]
Optics Letters, 2011 3 pages, 3 figures ...
Patrick Gill, S. A. Webster
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Photonic Hook Initiated Using an Air–Liquid Interface
Photonics, 2023 In this paper, we demonstrate a novel photonic hook being initiated using an air–liquid interface (ALI). This bent light focus is produced by immersing a dielectric micro-cylinder partially at the edge of a thin liquid film whose thickness is smaller ...
Liyang Yue +4 more
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Multiple Beam Laser Guidance for Patterning Irregularly Shaped Cells
Frontiers in Physics, 2020 Laser cell patterning is a distinctly effective technique for creating cell arrangements in culture that replicate in vivo tissue structure for studying contact-mediated cell-cell interactions. Conventional laser-based single-cell-manipulation techniques
Lucas Schmidt +6 more
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Design Rules For a Nano-Opto-Mechanical Actuator Based on Suspended Slot Waveguides
Photonics, 2017 In this paper, physical modeling including optical and Casimir forces is adopted in order to analyze a nano-opto-mechanical actuator based on silicon-on-insulator suspended slot waveguides.
Francesco De Leonardis +2 more
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Polarization‐Dependent Optical Forces Arising from Fano Interference
Advanced Physics Research, 2023 A Fano resonance originates from the resonant coupling between interacting multipoles inside nanostructures. It breaks the symmetry of spectral line shape and enables Fano‐resonant media to present unusual scattering properties.
Yao Zhang +4 more
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Optical Tweezers: A Force to Be Reckoned With [PDF]
Cell, 2018 The 2018 Nobel Prize in Physics has been awarded jointly to Arthur Ashkin for the discovery and development of optical tweezers and their applications to biological systems and to Gérard Mourou and Donna Strickland for the invention of laser chirped pulse amplification.
Fan Ye +5 more
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