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On-fringe optical trapping of dielectric microparticles in air [PDF]
EPJ Web of ConferencesOptical trapping in air of dielectric micro-spheres is reported using a dual fiber optical tweezers. The spheres are trapped on the interference fringes created by the two counter-propagating optical trapping beams.
Magguilli Clémence, Fick Jochen
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Enhancing gradient force over scattering force for nano-trapping through compensating for aberration
New Journal of Physics, 2023 One challenge of optical trapping of nanoparticles is the weak trapping force compared to the destabilizing pushing force. Here we enhance the optical gradient force (GF), which is responsible for trapping, to achieve stable nanoparticle trapping through
Dongyong Wang, Xiao Li, Jack Ng
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Effects of Infrared Optical Trapping on Saccharomyces cerevisiae in a Microfluidic System
Sensors, 2017 Baker’s yeast (Saccharomyces cerevisiae) represents a very popular single-celled eukaryotic model organism which has been studied extensively by various methods and whose genome has been completely sequenced.
Zdeněk Pilát +3 more
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Photonics, 2022 The optothermal manipulation of micro-objects is significant for understanding and exploring the unknown in the microscale word, which has found many applications in colloidal science and life science.
Hao-Dong Wang +5 more
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IEEE Photonics Journal, 2019 Photonic crystal (PhC) cavities have been widely utilized for the optical trapping. However, it is still challenging to achieve high-efficiency optical trapping of ultrasmall nanoparticles.
Yan Gao, Yaocheng Shi
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Nanophotonics, 2020 Beyond diffraction limit, multitrapping of nanoparticles is important in numerous scientific fields, including biophysics, materials science and quantum optics.
Huang Lu +6 more
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Physical Review Research, 2021 Optical trapping using laser tweezer has revolutionized the field of force spectroscopy having enormous applications in biological manipulation. While a number of theories were developed for particles of different sizes to estimate trapping force under ...
Anita Devi, Arijit K. De
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Trapping of resonant metallic nanoparticles with engineered vectorial optical field
Nanophotonics, 2014 Optical trapping and manipulation using focused laser beams has emerged as a powerful tool in the biological and physical sciences. However, scaling this technique to metallic nanoparticles remains challenging due to the strong scattering force and ...
Rui Guanghao, Zhan Qiwen
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Photonics, 2020 As water is normally used as the immersion medium in optically trapped microsphere microscopy, the high-refractive-index barium titanate glass (BTG) microsphere shows a better imaging performance than the low-index polystyrene (PS) or melamine ...
Xi Liu, Song Hu, Yan Tang
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Numerical Analysis of Optical Trapping Force Affected by Lens Misalignments
Photonics, 2021 Geometrical optics approximation is a classic method for calculating the optical trapping force on particles whose sizes are larger than the wavelength of the trapping light.
Hanlin Zhang +3 more
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