Results 51 to 60 of about 2,230,771 (150)

Polarization-Controlled Optical Manipulation of DNA Origami Assembled Asymmetric Optomechanical Probes [PDF]

EPJ Web of Conferences
Optical manipulation of asymmetric microstructures enables controlled orientation, rotation, and transport of microscopic objects using structured light fields. In this work, we investigate the dynamics of asymmetric optomechanical probes assembled using
Bernatová Silvie, Jákl Petr, Ruiz Arce Davis D., Šilhan Lukáš, Kočišek Jaroslav, Benešová Markéta, Sala Leo, Ježek Jan, Zemánek Pavel, Jonáš Alexandr   +9 more
doaj   +1 more source

Photothermal bubble: Dynamics, manipulation, and applications

Droplet, EarlyView.
As a versatile platform for bubble manipulation, photothermal techniques empower diverse operations: planar translation by scanning the laser spot, sustained periodic bouncing from competing thermal and hydrodynamic flows, and even guided 3D trajectories achieved by tailoring the heating configuration.
Man Hu, Feng Wang, Daosheng Deng
wiley   +1 more source

Single-atom trapping and transport in DMD-controlled optical tweezers

New Journal of Physics, 2018
We demonstrate the trapping and manipulation of single neutral atoms in reconfigurable arrays of optical tweezers. Our approach offers unparalleled speed by using a Texas instruments digital micro-mirror device as a holographic amplitude modulator with a
Dustin Stuart, Axel Kuhn
doaj   +1 more source

Generating Helical Polymorphic Beams Using Dielectric Metasurfaces

Laser &Photonics Reviews, EarlyView.
Helix‐shaped polymorphic beams are optical fields whose intensity maxima spiral around the propagation axis, enabling particle manipulation through attractive or repulsive forces. Traditionally requiring expensive spatial light modulators, metasurfaces now provide a compact, cost‐effective alternative. This work demonstrates general helical polymorphic
Maryam Setareh, Yang Xu, Jose A. Rodrigo, Kenneth B. Crozier   +3 more
wiley   +1 more source

Phase-sensitive detection in Raman Tweezers: biological applications [PDF]

, 2008
In the biomedicine field, scientists act as detectives working hard to unravel the mysteries surrounding cells. To this end, Raman spectroscopy has revealed itself particularly useful, providing information concerning both the chemical composition and ...
De Luca, Anna Chiara
core   +1 more source

Auxiliary Optomechanical Tools for 3D Cell Manipulation

Micromachines, 2020
Advances in laser and optoelectronic technologies have brought the general concept of optomechanical manipulation to the level of standard biophysical tools, paving the way towards controlled experiments and measurements of tiny mechanical forces. Recent
Ivan Shishkin, Hen Markovich, Yael Roichman, Pavel Ginzburg   +3 more
doaj   +1 more source

Lipid‐Mediated DNA–Protein Coupling Reinforces the Mechanics of HP1α–DNA Condensates

Small Science, Volume 6, Issue 9, September 2026.
Raman–Brillouin imaging combined with FRAP analysis reveals the opposing mechanical effects of DNA and lipids in HP1α–DNA condensates used as a heterochromatin model. DNA renders condensates morphologically distorted yet mechanically soft by forming partially immobilized internal structures that are decoupled from HP1α dynamics, whereas lipids enhance ...
Masato Machida, Kohei Yokosawa, Shinya Tahara, Takakazu Nakabayashi, Shinji Kajimoto   +4 more
wiley   +1 more source

Rotating Fluorescent Nanodiamond Assemblies With Focused Laguerre–Gaussian Beams

Advanced Optical Materials, Volume 14, Issue 31, August 21, 2026.
Self‐assembled fluorescent nanodiamond clusters are optically trapped and driven into controlled two‐dimensional rotation with Laguerre–Gaussian beams. With localized optical excitation, optically detected magnetic resonance spectra are collected at defined points along the orbit in a uniform external magnetic field.
Adam Stewart, Anthony J. El‐Helou, Ying Zhu, David McGloin, David A. Simpson, Peter J. Reece   +5 more
wiley   +1 more source

Optical Phased Arrays on Photonic Integrated Circuit Platforms: Challenges, Opportunities, and Future Applications

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
Integrated optical phased arrays are emerging as scalable engines for solid‐state beam steering and programmable wavefront control. This Review maps the field from beam‐steering principles and core building blocks to material platforms, system‐level bottlenecks, and application frontiers, highlighting how heterogeneous integration, aperiodic ...
Jingwei Li, Yuyuan Han, Aoxiang Chen, Pengpeng Li, Xinglin Zhu, Guanbao Zhao, Luohan Peng, Huaibin Zheng   +7 more
wiley   +1 more source

A programmable optical angle clamp for rotary molecular motors [PDF]

, 2007
Optical tweezers are widely used for experimental investigation of linear molecular motors. The rates and force dependence of steps in the mechanochemical cycle of linear motors have been probed giving detailed insight into motor mechanisms. With similar
Berry, RM, Futai, Masamitsu, Bai, Fan, Futai, M, Bilyard, Thomas, Pilizota, T, Berry, Richard, Bilyard, T, Bai, F, Hosokawa, H, Hosokawa, Hiroyuki, Pilizota, Teuta, Berry, Richard M., Berry, Richard Michael   +13 more
core   +1 more source