Results 71 to 80 of about 187,701 (187)
Engineering light-matter interaction for emerging optical manipulation applications
Nanophotonics, 2014 In this review, we explore recent trends in optical micromanipulation by engineering light-matter interaction and controlling the mechanical effects of optical fields. One central theme is exploring the rich phenomena beyond the now established precision
Qiu Cheng-Wei +6 more
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Micro force measurement by an optical method [PDF]
SPIE Proceedings, 2009 We discuss the application of stress-induced changes in the crystal of a monolithic Nd:YAG laser as a possibility for microforce measurement. In fact, application of an unknown force on the resonator-amplifier-crystal can lead to a several gigahertz change, depending on the force intensity, of the laser frequency.
openaire +5 more sources
Dynamics of dual-orbit rotations of nanoparticles induced by spin–orbit coupling
NanophotonicsSpin–orbit coupling (SOC) in tightly focused optical fields offers a powerful mechanism for manipulating the complex motion of particles. However, to date, such a mechanism has only been applied to the single-orbit motion for particles, while multi ...
Zhang Yu +9 more
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Optical pulling force on nonlinear nanoparticles with gain
AIP Advances, 2020 We investigate the optical force on the nonlinear nanoparticles with gain based on nonlinear Mie theory and Maxwell’s stress tensor method. For the nonlinear susceptibility χ(3) = 0 (i.e., the linear nanoparticle), the threshold gain to obtain the ...
Hongli Chen +7 more
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Nanoscopic Observation of Chiro-Optical Force. [PDF]
Nano Lett, 2023 Yamanishi J, Ahn HY, Okamoto H.
europepmc +1 more source
Demonstration of optically modulated dispersion forces
Optics Express, 2007 We report the first experiment on the optical modulation of dispersion forces through a change of the carrier density in a Si membrane. For this purpose a high-vacuum based atomic force microscope and excitation light pulses from an Ar laser are used. The experimental results are compared with two theoretical models.
G. L. Klimchitskaya +3 more
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Visualizing ultrafast photothermal dynamics with decoupled optical force nanoscopy. [PDF]
Nat Commun, 2023 Wang H +4 more
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Forced Molecular Rotation in an Optical Centrifuge
Physical Review Letters, 2000 Intense linearly polarized light induces a dipole force that aligns an anisotropic molecule to the direction of the field polarization. Rotating the polarization causes the molecule to rotate. Using femtosecond laser technology, we accelerate the rate of rotation from 0 to 6 THz in 50 ps, spinning chlorine molecules from near rest up to angular ...
David M. Villeneuve +6 more
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Optical Forces on Chiral Particles: Science and Applications
MicromachinesChiral particles have attracted considerable attention due to their distinctive interactions with light, which enable a variety of cutting-edge applications.
Weicheng Yi +7 more
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Mirror-Enhanced Plasmonic Nanoaperture for Ultrahigh Optical Force Generation with Minimal Heat Generation. [PDF]
Nano Lett, 2023 Anyika T, Hong I, Ndukaife JC.
europepmc +1 more source