Results 11 to 20 of about 2,721,612 (374)
Optical Tweezers Exploring Neuroscience [PDF]
Frontiers in Bioengineering and Biotechnology, 2020 Over the past decade, optical tweezers (OT) have been increasingly used in neuroscience for studies of molecules and neuronal dynamics, as well as for the study of model organisms as a whole.
Isaac C. D. Lenton +4 more
doaj +5 more sources
Theory of Optical Tweezers [PDF]
Europhysics Letters (EPL), 1999 We derive a partial-wave (Mie) expansion of the axial force exerted on a transparent sphere by a laser beam focused through a high numerical aperture objective. The results hold throughout the range of interest for practical applications.
+9 more
core +4 more sources
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
doaj +2 more sources
Theoretical Analysis and Experimental Verification of the Influence of Polarization on Counter-Propagating Optical Tweezers [PDF]
Micromachines, 2023 Counter-propagating optical tweezers are experimental platforms for the frontier exploration of science and precision measurement. The polarization of the trapping beams significantly affects the trapping status. Using the T-matrix method, we numerically
Ming Chen +7 more
doaj +2 more sources
Tweezers controlled resonator [PDF]
, 2015 We experimentally demonstrate trapping a microdroplet with an optical tweezer and then enabling it as a microresonator by bringing it close to a tapered fiber coupler. Our tweezers facilitated the tuning of the coupling from the under-coupled to the critically coupled regime with an optical Q of 12 million and microresonator size at the 85 mirons scale.
Carmon, Tal +2 more
arxiv +3 more sources
Optical tweezers: theory and practice [PDF]
The European Physical Journal Plus, 2020 The possibility for the manipulation of many different samples using only the light from a laser beam opened the way to a variety of experiments. The technique, known as Optical Tweezers, is nowadays employed in a multitude of applications demonstrating ...
G. Pesce, P. Jones, O. Maragò, G. Volpe
semanticscholar +5 more sources
Optical Tweezers: Phototoxicity and Thermal Stress in Cells and Biomolecules [PDF]
Micromachines, 2019 For several decades optical tweezers have proven to be an invaluable tool in the study and analysis of myriad biological responses and applications. However, as with every tool, they can have undesirable or damaging effects upon the very sample they are ...
Alfonso Blázquez-Castro
doaj +2 more sources
Microrheology with Optical Tweezers of gel-like materials 'is not an option'! [PDF]
arXiv, 2015 Optical tweezers have been successfully adopted as exceptionally sensitive transducers for microrheology studies of complex 'fluids'. Despite the general trend, a similar approach cannot be adopted for microrheology studies of 'gel-like' materials, e.g. living cells.
Ashkin +17 more
arxiv +3 more sources
Manipulation of Biological Cells Using a Robot-Aided Optical Tweezers System
Micromachines, 2018 This article reviews the autonomous manipulation strategies of biological cells utilizing optical tweezers, mainly including optical direct and indirect manipulation strategies. The typical and latest achievements in the optical manipulation of cells are
Mingyang Xie +2 more
doaj +2 more sources
Dual-fiber optical tweezers integrating high-sensitivity structured-light displacement measurement system on fiber end-face [PDF]
Scientific ReportsThe dual-fiber optical tweezers have become widespread in trapping, assembling, and sensing due to their simple fabrication process and flexible operation.
Guofeng Li +10 more
doaj +2 more sources