Results 31 to 40 of about 2,721,612 (374)
Optical Frequency Tweezers [PDF]
Physical Review Applied, 2022 We show a concept of optical frequency tweezers for tweezing light in the optical frequency domain with a high resolution, which is the frequency version of the optical tweezers for spatial manipulation of microscopic objects. We report the proof-of-principle experiment via frequency conversion inside a cavity only for the converted light.
Rikizo Ikuta +4 more
openaire +2 more sources
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
doaj +1 more source
Optical tweezers and their applications [PDF]
Journal of Quantitative Spectroscopy and Radiative Transfer, 2018 Optical tweezers, tools based on strongly focused light, enable optical trapping, manipulation, and characterisation of a wide range of microscopic and nanoscopic materials. In the limiting cases of spherical particles either much smaller or much larger than the trapping wavelength, the force in optical tweezers separates into a conservative gradient ...
P. Polimeno +10 more
semanticscholar +4 more sources
Rotational Coherence Times of Polar Molecules in Optical Tweezers. [PDF]
Physical Review Letters, 2021 Qubit coherence times are critical to the performance of any robust quantum computing platform. For quantum information processing using arrays of polar molecules, a key performance parameter is the molecular rotational coherence time.
Sean Burchesky +7 more
semanticscholar +1 more source
The optical tweezer of skyrmions [PDF]
npj Computational Materials, 2020 AbstractIn a spin-driven multiferroic system, the magnetoelectric coupling has the form of effective dynamical Dzyaloshinskii–Moriya (DM) interaction. Experimentally, it is confirmed, for instance, for Cu2OSeO3, that the DM interaction has an essential role in the formation of skyrmions, which are topologically protected magnetic structures.
Levan Chotorlishvili +10 more
openaire +3 more sources
Exploring cell and tissue mechanics with optical tweezers.
Journal of Cell Science, 2022 Cellular and tissue biosystems emerge from the assembly of their constituent molecules and obtain a set of specific material properties. To measure these properties and understand how they influence cellular function is a central goal of mechanobiology ...
Frederic Català-Castro +2 more
semanticscholar +1 more source
Heat in optical tweezers [PDF]
SPIE Proceedings, 2013 Laser-induced thermal effects in optically trapped microspheres and single cells have been investigated by Luminescence Thermometry. Thermal spectroscopy has revealed a non-localized temperature distribution around the trap that extends over tens of microns, in agreement with previous theoretical models.
William T. Ramsay +16 more
openaire +3 more sources
Interferometric Optical Tweezers [PDF]
Optics and Photonics News, 1996 Abstract We report the first experimental demonstration of an optical trap that uses interference fringes for the trapping and micro-manipulation of microscopic objects. The finges can be generated either by two-beam interference or by projecting a reduced image of a Ronchi ruling on the sample plane.
Chiou, Arthur E +4 more
openaire +5 more sources
Nature Communications, 2021 Surface-enhanced Raman spectroscopy (SERS) has emerged as a powerful tool to detect biomolecules in aqueous environments. However, it is challenging to identify protein structures at low concentrations, especially for the proteins existing in an ...
Xin Dai +7 more
semanticscholar +1 more source
Plasmonic Optical Tweezers for Particle Manipulation: Principles, Methods, and Applications.
ACS Nano, 2021 Inspired by the idea of combining conventional optical tweezers with plasmonic nanostructures, a technique named plasmonic optical tweezers (POT) has been widely explored from fundamental principles to applications.
Yatao Ren +5 more
semanticscholar +1 more source