Results 61 to 70 of about 888 (159)
Progress in Phase Calibration for Liquid Crystal Spatial Light Modulators
Applied 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
Laser &Photonics Reviews, Volume 20, Issue 2, 22 January 2026.Nonlinear orbital angular momentum (OAM) manipulation is crucial for fundamental physics and information technologies. An integrated lithium niobate platform combining Bragg diffraction and birefringent phase matching asymmetrically generates and controls second‐harmonic OAM beams, achieving a normalized conversion efficiency of 10−2 W−1 and supports a
Xinyu Liu +7 more
wiley +1 more source
Small Methods, Volume 10, Issue 2, 22 January 2026.This review provides key principles of designing and synthesizing reconfigurable plasmonic gold nanostructures for generating and controlling physical, chemical, and biological properties and functions. The recent advances in the biological and materials applications of dynamically reconfigurable plasmonic gold nanostructures are also summarized ...
So Young Choi +6 more
wiley +1 more source
Programmable Shape‐Directed Optical Binding of Plasmonic Nanoparticles
Advanced Optical Materials, Volume 13, Issue 34, December 2, 2025.Shape‐directed optical binding of plasmonic nanoparticles is demonstrated using gold spheres, rods, plates, and decahedra under near‐infrared trapping. Distinct near‐ and far‐field configurations emerge, governed by shape‐dependent scattering and wavelength.
Jim Jui‐Kai Chen +13 more
wiley +1 more source
Rotating Gold Nanomotors for High‐Resolution Mapping of Subcellular Nanomotions
Small Methods, Volume 9, Issue 12, December 1, 2025.A nanomotor‐based method uses optically driven, rotating gold nanorods to detect nanometer‐scale cellular movements with 10 nm spatial and millisecond temporal resolution. Applied to live endothelial cells, the technique reveals subcellular mechanical activity and distinct frequency regimes, capturing transient, localized oscillations.
Emelie Tornéus +3 more
wiley +1 more source
Multi-beam bilateral teleoperation of holographic optical tweezers
Optics 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
Nanophotonics, 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
Steerable High‐Resolution Ultrasound Focusing via Phase‐Array‐Activated Acoustic Meta‐Lenses
Advanced 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
Holographic optical tweezers and their relevance to lab on chip devices
Lab on a Chip, 2011 During the last decade, optical tweezers have been transformed by the combined availability of spatial light modulators and the speed of low-cost computing to drive them. Holographic optical tweezers can trap and move many objects simultaneously and their compatibility with other optical techniques, particularly microscopy, means that they are highly ...
Padgett, Miles, Di Leonardo, Roberto
openaire +5 more sources
Structured Light Beams With Fractional Topological Charge
Microwave and Optical Technology Letters, Volume 67, Issue 11, November 2025.ABSTRACT In this paper, we develop a simple method to obtain solutions of the Helmholtz equation that holds fractional topological charge. Such wavefields are obtained in a closed and analytical form through the superposition of beams with integer topological charge.
João Quaglio +3 more
wiley +1 more source