Tailoring optical pulling forces with composite microspheres
نویسندگان
چکیده
منابع مشابه
Tailoring repulsive optical forces in nanophotonic waveguides.
We describe a mechanism and propose design strategies to selectively tailor repulsive-gradient-optical forces between parallel, nanophotonic waveguides via morphology augmented by slow-light band-edge modes. We show that at small separation lengths, the repulsive force can be made nearly 2 orders of magnitude larger than that of standard dielectric waveguides with a square cross section. The in...
متن کاملTailoring photonic forces on a magnetodielectric nanoparticle with a fluctuating optical source
We address the forces exerted by the random electromagnetic field emitted by a fluctuating optical source on a kind of dielectric nanoparticles that have arisen much interest because of their recently shown magnetodielectric behavior. The illumination with light, or other electromagnetic wave, of a given state of coherence allows us to create photonic forces, a particular case of which are opti...
متن کاملSurface forces and drag coefficients of microspheres near a plane surface measured with optical tweezers.
Optical tweezers are widely used to measure molecular forces in biology. Such measurements are often influenced by a nearby surface that can perturb both the calibration of the tweezers as well as the hydrodynamic forces acting on microspheres to which the biomolecules are attached. In this study, we have used a very stable optical tweezers setup employing a recently developed calibration metho...
متن کاملAeroelastic Tailoring of Composite Box Beams
Aeroelastic instabilities are an important factor in the design of modern high-speed, flexible aircraft. The current trend is toward the creative use of composites to delay these instabilities. To obtain an optimum design, an accurate as well as efficient model is required. As a first step towards this goal, aeroelastic analysis is carried out for a swept composite box beam, using a linear stru...
متن کاملWavelength dependence of optical tweezer trapping forces on dye-doped polystyrene microspheres
We present an experimental and numerical study of the wavelength dependence, near resonance, of the optical tweezer trap stiffness on three different dye-doped 1 m polystyrene spheres with peak absorptions at =625, 775, and 840 nm. Experimentally, an increase in the trap stiffness of 35% on the red side of resonance was observed for the dye-doped spheres relative to polystyrene spheres without ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2020
ISSN: 2469-9926,2469-9934
DOI: 10.1103/physreva.102.023514