Results 31 to 40 of about 190,173 (286)
Dual Optomechanical Cavities for All-Optical Actuation and Sensing of Mechanical Motion
IEEE Photonics Journal, 2022 Cavity optomechanics in the photonic devices enables a light-matter interaction in the chip-scale systems via the optical force driven mechanical motion.
Xia Ji +4 more
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Optica, 2020 Progress in light scattering engineering made it feasible to develop optical tweezers allowing capture, hold, and controllable displacement of submicrometer-size particles and biological structures. However, the momentum conservation law imposes a fundamental restriction on the optical pressure to be repulsive in paraxial fields, which severely limits ...
Alex Krasnok, Sergey Lepeshov
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Optical Fiber Tweezers: A Versatile Tool for Optical Trapping and Manipulation
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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Nanophotonics, 2022 Reversible control over the microparticle motion using light excites interesting applications in optofluidics, microswimmers, artificial optical matter, and biomedical engineering.
Ren Yu-Xuan +8 more
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Cross Diabolo Hollow Notch Nanotweezer for Optical Trapping and Manipulation
IEEE Photonics Journal, 2022 Plasmonic nanotweezer manipulates nanoparticles utilizing extraordinary electric field gradients and field enhancement originated from localized surface plasmon resonance.
Md. Abeed Hasan, Ahmed Zubair
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Optical and force nanoscopy in microbiology [PDF]
Nature Microbiology, 2016 Microbial cells have developed sophisticated multicomponent structures and machineries to govern basic cellular processes, such as chromosome segregation, gene expression, cell division, mechanosensing, cell adhesion and biofilm formation. Because of the small cell sizes, subcellular structures have long been difficult to visualize using diffraction ...
Jie Xiao, Yves F. Dufrêne
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Optical Manipulation of Lanthanide-Doped Nanoparticles: How to Overcome Their Limitations
Frontiers in Chemistry, 2020 Since Ashkin's pioneering work, optical tweezers have become an essential tool to immobilize and manipulate microscale and nanoscale objects. The use of optical tweezers is key for a variety of applications, including single-molecule spectroscopy ...
Elisa Ortiz-Rivero +4 more
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A Nanoscale Photonic Crystal Cavity Optomechanical System for Ultrasensitive Motion Sensing
Crystals, 2021 Optomechanical nanocavities open a new hybrid platform such that the interaction between an optical cavity and mechanical oscillator can be achieved on a nanophotonic scale.
Ji Xia +5 more
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Curvilinear optical forces [PDF]
Physical Review A, 2015 Accelerating a light beam makes a particle move along a curvilinear trajectory. We show that the curvature of the trajectory causes a special kind of nonconservative force, which is called a curvilinear force. We obtain the expression for this force acting on a spherical particle in the Rayleigh approximation and determine its value for several types ...
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Optical forces in optical nanofibers
Journal of Physics: Conference Series, 2018 Optical forces exerted upon the endface of optical nanofiber have been carefully investigated numerically. Detailed spatial optical force distributions along the fiber axis are obtained. Dependence of optical force on fiber diameters, input modal polarizations, oblique-cut endfaces are carefully taken into considerations.
Yun-Yuan Zhang, Zhen Li, Huakang Yu
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