Results 31 to 40 of about 40,788 (259)
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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Blue-Detuned Magneto-Optical Trap [PDF]
Physical Review Letters, 2018 We present the properties and advantages of a new magneto-optical trap (MOT) where blue-detuned light drives `type-II' transitions that have dark ground states. Using $^{87}$Rb, we reach a radiation-pressure-limited density exceeding $10^{11}$cm$^{-3}$ and a temperature below 30$ $K.
Jarvis, KN +4 more
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Ramsey Imaging of Optical Traps [PDF]
Physical Review Applied, 2021 Mapping the potential landscape with high spatial resolution is crucial for quantum technologies based on ultracold atoms. Yet, imaging optical dipole traps is challenging because purely optical methods, commonly used to profile laser beams in free space, are not applicable in vacuum.
Gautam Ramola +6 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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Optimized holographic optical traps
Optics Express, 2005 Holographic optical traps use the forces exerted by computer-generated holograms to trap, move and otherwise transform mesoscopically textured materials. This article introduces methods for optimizing holographic optical traps' efficiency and accuracy, and an optimal statistical approach for characterizing their performance.
Polin, Marco +4 more
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