Results 21 to 30 of about 4,295 (184)
Nano calligraphy via optical electro-aligning manipulation [PDF]
Microsystems & NanoengineeringThe precision assembly of anisotropic nanostructures is a prerequisite for next-generation integrated microsystems, quantum photonics, and bio-interfaces.
Haobing Liu +17 more
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Above and beyond: holographic tracking of axial displacements in holographic optical tweezers
Optics Express, 2019 How far a particle moves along the optical axis in a holographic optical trap is not simply dictated by the programmed motion of the trap, but rather depends on an interplay of the trap's changing shape and the particle's material properties. For the particular case of colloidal spheres in optical tweezers, holographic video microscopy reveals that ...
Michael J. O’Brien, David G. Grier
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Vortex bifocusing of extreme ultraviolet using modified Fermat-spiral photon-sieve splitter [PDF]
NanophotonicsStructured beams carrying orbital angular momentum (OAM) provide powerful capabilities for applications in optical tweezers, super-resolution imaging, quantum optics, and ad-vanced microparticle manipulation.
Liu Yuanyuan +8 more
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Optofluidic Tweezers: Efficient and Versatile Micro/Nano-Manipulation Tools
Micromachines, 2023 Optical tweezers (OTs) can transfer light momentum to particles, achieving the precise manipulation of particles through optical forces. Due to the properties of non-contact and precise control, OTs have provided a gateway for exploring the mysteries ...
Yuchen Zhu +8 more
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Applied Sciences, 2022 Holographic optical tweezers have unique non-physical contact and can manipulate and control single or multiple cells in a non-invasive way. In this paper, the dynamics model of the cells captured by the optical trap is analyzed, and a control system ...
Jing Zhao +4 more
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Optical Calibration of Holographic Acoustic Tweezers
IEEE Transactions on Instrumentation and Measurement, 2023 Recently, acoustic tweezers based on an array of ultrasonic transducers have been reported taking inspiration from holographic optical tweezers. In the latter technique, the calibration of the optical trap is an essential procedure to obtain the trap stiffnesses.
Marrara, Sonia +11 more
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Optimized hologram generation method for real-time spontaneous manipulation
AIP Advances, 2023 Aided by computer generated holography, holographic optical tweezers enable manipulation of particles and objects with exceptional versatility. The responsiveness of the manipulation is often hindered by the speed of holograph generation, especially when
Zhelin Qu +5 more
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Integrated self-referencing single shot digital holographic microscope and optical tweezer
Light: Advanced Manufacturing, 2022 Digital holographic microscopy is a single-shot technique for quantitative phase imaging of samples, yielding thickness profiles of phase objects. It provides sample features based on their morphology, leading to their classification and identification ...
Subhash Utadiya +8 more
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Acousto-holographic optical tweezers
Optics Letters, 2020 Acousto-optic deflectors (AODs) allow the creation of multiple optical traps by time-sharing, that is, by rapidly cycling the laser focus between designated spatial locations. The traps thus formed are not permanent. In this Letter, we successfully demonstrate the creation of multiple and permanent traps by means of AODs driven by specially encoded ...
R. Bola +4 more
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Marker-free cell discrimination by holographic optical tweezers [PDF]
Journal of the European Optical Society-Rapid Publications, 2009 We introduce a method for marker-free cell discrimination based on optical tweezers. Cancerous, non-cancerous, and drug-treated cells could be distinguished by measuring the trapping forces using holographic optical tweezers.
Schaal F. +5 more
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