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481
Robotic formation control in micro world
Published 2016“…This report emphasize on the image process and calculation of best grasping positions for the target cell. Optical Tweezer (OT) system will be used to manoeuvre the end effectors (silicon beads) to execute the grasping action.…”
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Final Year Project (FYP) -
482
Berry-phase gates for fast and robust control of atomic clock states
Published 2020-04-01“…The experiment is conducted with two linearly polarized, chirped optical pulses, interacting with five single rubidium atoms simultaneously in an array of optical tweezer dipole traps, to demonstrate the proposed picosecond-timescale clock-state gates. …”
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483
Advances on Solid-State Vortex Laser
Published 2022-03-01“…Vortex beams (VBs) are structured beams with helical wavefronts carrying orbital angular momentum (OAM) and they have been widely used in lots of domains, such as optical data-transmission, optical tweezer, quantum entanglement, and super-resolution imaging. …”
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484
Quantum jump spectroscopy of a single neutral atom for precise subwavelength intensity measurements
Published 2022-11-01“…We demonstrate the method by measuring the intensity at the focus of an optical tweezer.…”
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485
Ion acceleration with an ultra-intense two-frequency laser tweezer
Published 2020-01-01“…This study presents a concept of an ultra-intense optical tweezer, where two counter-propagating circularly polarized intense lasers of different frequencies collide on a nano-foil. …”
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486
Optical manipulation of biological cell without measurement of cell velocity
Published 2014“…Optical tweezer is a useful tool for non-contact micromanipulation tasks because it can manipulate biological cells precisely without causing damage to the cells. …”
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Conference Paper -
487
Coherent Light Shift on Alkaline-Earth Rydberg Atoms from Isolated Core Excitation without Autoionization
Published 2022-05-01“…New experimental quantum simulation platforms have recently been implemented with divalent atoms trapped in optical tweezer arrays, with promising performance. The second valence electron also brings about new prospects through the so-called isolated core excitation (ICE). …”
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488
Wet and dry internal friction can be measured with the Jarzynski equality
Published 2020-03-01“…Well-established single-molecule manipulation techniques, such as optical tweezer-based pulling, can be used to implement the suggested protocol experimentally.…”
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489
Universal aspects of barrier crossing under bias
Published 2023-10-01“…We consider the case of bias due to an external force, analogous to the pulling force applied in optical tweezer experiments on biopolymers. Away from the Arrhenius-law limit and well out of equilibrium, somewhat idiosyncratic behavior might be expected. …”
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Article -
490
Dielectric, piezoelectric, and ferroelectric nanomaterials in the biomedical applications
Published 2023-12-01“…Biomolecular detection methods have been developed, including dielectric‐gated field‐effect transistor, dielectrophoresis, non‐linear dielectric response, and optical tweezer. Endogenous bioelectricity is a crucial in cell proliferation, migration, differentiation, intracellular communication, neuronal activity, tissue growth. …”
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491
Simulation Study of Phase-Driven Multichannel Nano-Optical Conveyor Belt Using Rectangular Gratings
Published 2023-02-01“…A nano-optical conveyor belt is a unique type of near-field optical tweezer, capable not only of capturing nanoparticles, but also transporting them. …”
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Article -
492
Cavity Cooling of a Levitated Nanosphere by Coherent Scattering
Published 2019“…The cooling mechanism is provided by cavity-enhanced coherent scattering off an optical tweezer. The observed 3D dynamics and cooling rates are as theoretically expected from the presence of both linear and quadratic terms in the interaction between the particle motion and the cavity field. …”
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Article -
493
Efficient preparation of two-dimensional defect-free atom arrays with near-fewest sorting-atom moves
Published 2021-04-01“…Sorting atoms stochastically loaded in optical tweezer arrays via an auxiliary mobile tweezer is an efficient approach to preparing intermediate-scale defect-free atom arrays in arbitrary geometries. …”
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494
Strongly interacting Rydberg atoms in synthetic dimensions with a magnetic flux
Published 2024-03-01“…Here, we extend the synthetic dimensions playbook to strongly interacting systems of Rydberg atoms prepared in optical tweezer arrays. We use precise control over driving microwave fields to introduce a tunable U(1) flux in a four-site lattice of coupled Rydberg levels. …”
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495
Measuring the nuclear magnetic quadrupole moment of optically trapped ytterbium atoms in the metastable state
Published 2024-01-01“…Laser-cooling and trapping techniques enable us to prepare ultracold ^173 Yb atoms in the $^3P_2$ state trapped in an optical lattice or an optical tweezer array, providing an ideal experimental platform with long spin coherence time. …”
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496
Towards hybrid quantum systems: Trapping a single atom near a nanoscale solid-state structure
Published 2021“…The trap is formed by the interference of an optical tweezer and its reflection from the nano object, creating a one-dimensional optical lattice where the first lattice site is at z0 ∼ λ/4 from the surface. …”
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Article -
497
Towards hybrid quantum systems: Trapping a single atom near a nanoscale solid-state structure
Published 2021“…The trap is formed by the interference of an optical tweezer and its reflection from the nano object, creating a one-dimensional optical lattice where the first lattice site is at z0 ∼ λ/4 from the surface. …”
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Article -
498
Prospects for single-photon sideband cooling of optically trapped neutral atoms
Published 2021-11-01“…In our analysis, we consider two cases: a two-level particle confined in an optical tweezer, and Li atoms confined in an optical lattice, and we find conditions for efficient cooling in both cases. …”
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499
Optimal Cold Atom Thermometry Using Adaptive Bayesian Strategies
Published 2022-12-01“…Specifically, we process data from real and simulated release-recapture thermometry experiments on few potassium atoms cooled down to the microkelvin range in an optical tweezer. From simulations, we demonstrate that adaptively choosing the release-recapture times to maximize information gain does substantially reduce the number of measurements needed for the estimate to converge to a final reading. …”
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500
Sensing directional noise baths in levitated optomechanics
Published 2024-01-01“…However, the possibility of searching for a stochastic stream of weak impulses, or more generally a directional broadband signal, need not be excluded; with this and other applications in mind, we apply Gaussian white noise impulses with a well defined direction Ψ to a levitated nanosphere trapped and 3D cooled in an optical tweezer. We find that cross-correlation power spectra offer a calibration-free distinctive signature of the presence of a directional broadband force and its orientation quadrant, unlike normal power spectral densities (PSDs). …”
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