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Large-scale optical trapping using a gradient-thickness protected microbottle resonator [PDF]
Microsystems & NanoengineeringDespite its huge potential, such as in biomedical research for bioparticle sorting and sensing, near-field optical trapping suffers from limited trapping efficiency due to the weak evanescent field accompanied by shallow penetration depth (~100 nm ...
Yuxiang Li +10 more
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Enhanced optical trapping by concentrated local fields in metallic semi-continuous films [PDF]
Discover NanoOn-chip optical trapping necessitates substrates that generate strong near-field forces while mitigating thermal instability. Here, metallic semi-continuous films are established as a transformative platform for high-efficiency optical manipulation ...
Chenchen Liu +4 more
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Ray Optics Model for Optical Trapping of Biconcave Red Blood Cells [PDF]
Micromachines, 2022 Red blood cells (RBCs) or erythrocytes are essential for oxygenating the peripherical tissue in the human body. Impairment of their physical properties may lead to severe diseases. Optical tweezers have in experiments been shown to be a powerful tool for
Riccardo Tognato, Philip H. Jones
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Optical Fiber Tweezers: A Versatile Tool for Optical Trapping and Manipulation [PDF]
Micromachines, 2020 Optical trapping is widely used in different areas, ranging from biomedical applications, to physics and material sciences. In recent years, optical fiber tweezers have attracted significant attention in the field of optical trapping due to their ...
Xiaoting Zhao +4 more
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Optical trapping stability of different irregularly shaped microplastic particles [PDF]
Scientific ReportsPlastic pollution has become a major environmental issue. Waste degrades into microplastics and nanoplastics, which contaminate water, soil, and air, and affect ecosystems and food sources.
Noorulhoda Kazemi +5 more
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Optical trapping with optical magnetic field and photonic Hall effect forces [PDF]
Nature CommunicationsOptical trapping offers robust nanoscale control of matter but, to date, has been dominated by the interaction between a material’s electric polarizability, α e, and the electric part of light, therefore defined by electric-field intensity-gradient ...
Yanzeng Li +8 more
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Optical trapping and fluorescence control with vectorial structured light [PDF]
Scientific Reports, 2022 Here we functionalized micro-scaled polymer beads with nano-scaled quantum dots and demonstrate optical trapping and tweezing, with in-situ fluorescence measurement, in an all-digital all-optical configuration.
Ané Kritzinger +2 more
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Chirality in Optical Trapping and Optical Binding [PDF]
Photonics, 2015 Optical trapping is a well-established technique that is increasingly used on biological substances and nanostructures. Chirality, the property of objects that differ from their mirror image, is also of significance in such fields, and a subject of much ...
David S. Bradshaw +3 more
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Optical trapping and manipulating with a transmissive and polarization-insensitive metalens [PDF]
NanophotonicsTrapping and manipulating micro-objects and achieving high-precision measurements of tiny forces and displacements are of paramount importance in both physical and biological research.
Yang Dongni +6 more
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Enhanced optical trapping [PDF]
Optical Manipulation and Structured Materials Conference 2020, 2020 Optical tweezers have contributed substantially to the advancement of micro-manipulation. However, they do have restrictions, mainly the limited range of materials that yield to optical trapping. Here we propose a method of employing optically trapped objects to manipulate the surrounding fluid and thus particles freely diffusing within it.
Butaite, Une G. +5 more
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