Results 71 to 80 of about 4,302 (205)

HoloTrap: Interactive hologram design for multiple dynamic optical trapping [PDF]

open access: yes, 2006
This work presents an application that generates real-time holograms to be displayed on a holographic optical tweezers setup; a technique that allows the manipulation of particles in the range from micrometres to nanometres.
A. Carnicer   +25 more
core   +3 more sources

A 10× continuously zoomable metalens system with super‐wide field of view and near‐diffraction–limited resolution

open access: yesNanophotonics, Volume 14, Issue 27, Page 5251-5265, December 2025.
Abstract Moiré metalens is attractive for imaging applications due to their compact form factor and high zoom ratio. Here, we propose a novel Moiré zoom metalens system that achieves a continuous 10× zoom over a focal length range of 2.2–22 mm at 1,064 nm, while extending the full field of view up to 93°.
Wangzhe Zhou   +10 more
wiley   +1 more source

Thermally induced micro-motion by inflection in optical potential

open access: yesScientific Reports, 2017
Recent technological progress in a precise control of optically trapped objects allows much broader ventures to unexplored territory of thermal motion in non-linear potentials.
Martin Šiler   +5 more
doaj   +1 more source

Multi-beam bilateral teleoperation of holographic optical tweezers

open access: yesOptics Express, 2012
A multi-beam bilateral teleoperation system of holographic optical tweezers accelerated by a graphics processing unit is proposed and evaluated. This double-arm teleoperation system is composed of two haptic devices and two laser-trapped micro-beads. Each micro-bead is trapped and moved following the trajectory of each haptic device, and the forces to ...
Kazuhisa, Onda, Fumihito, Arai
openaire   +2 more sources

Interfacial Assembly of Dye‐Doped Microparticles Driven by Combined Optical and Non‐Optical Forces

open access: yesAdvanced Optical Materials, Volume 13, Issue 31, November 5, 2025.
Optical trapping controls nano‐ and microparticle assembly using various forces, including absorption for photoexcitable resonant molecules. This study demonstrates photoexcitation‐mediated assembly, forming hexagonal‐close‐packed structures at the air/solution interface.
Qing Qing Wang   +9 more
wiley   +1 more source

Progress in Phase Calibration for Liquid Crystal Spatial Light Modulators

open access: yesApplied Sciences, 2019
Phase-only Spatial Light Modulator (SLM) is one of the most widely used devices for phase modulation. It has been successfully applied in the field with requirements of precision phase modulation such as holographic display, optical tweezers, lithography,
Rujia Li, Liangcai Cao
doaj   +1 more source

Improving the throughput of automated holographic optical tweezers

open access: yesApplied Optics, 2018
The purpose of this work is to introduce three improvements to automated holographic-optical-tweezers systems that increase the number and speed of particles that can be manipulated simultaneously. First, we address path planning by solving a bottleneck assignment problem, which can reduce total move time by up to 30% when compared with traditional ...
Lucas A, Shaw   +2 more
openaire   +2 more sources

Roadmap on structured light [PDF]

open access: yes, 2017
Structured light refers to the generation and application of custom light fields. As the tools and technology to create and detect structured light have evolved, steadily the applications have begun to emerge.
Belmonte Molina, Aniceto   +5 more
core   +2 more sources

Steerable High‐Resolution Ultrasound Focusing via Phase‐Array‐Activated Acoustic Meta‐Lenses

open access: yesAdvanced Physics Research, Volume 4, Issue 11, November 2025.
Conventional phased arrays face a trade‐off between performance and complexity. Here, a unique approach is proposed by decoupling the functions into two steps. In step 1, a sparse phased array generates a steerable plane wave with little distortion. In step 2, the steerable plane wave is reshaped into high‐resolution acoustic focusing or holographic ...
Xin‐Yu Cui   +7 more
wiley   +1 more source

Polygonal micro-whirlpools induced in ferrofluids

open access: yes, 2015
We report on the observation of the polygonal whirlpools in the thin layer of ferrofluid under illumination with a laser beam carrying optical vortex and in the presence of a vertical magnetic field. This kind of structures have attracted attention after
Bacia, Marcin   +4 more
core   +1 more source

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