Results 41 to 50 of about 192,487 (281)
Optical Trapping of Electrons in Graphene [PDF]
ACS Photonics, 2018 We propose an experimentally friendly scheme for trapping quasi- relativistic elec- trons in graphene by an electromagnetic beam with circular polarization and spatially inhomogeneous profile with an intensity dip. The trapping is achieved due to the ef- fect of bandgap opening outside the trapping region.
Skender Morina +3 more
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Photonics, 2022 The optothermal manipulation of micro-objects is significant for understanding and exploring the unknown in the microscale word, which has found many applications in colloidal science and life science.
Hao-Dong Wang +5 more
doaj +1 more source
Trapping radioactive ^{82}Rb in an optical dipole trap and evidence of spontaneous spin polarization [PDF]
, 2007 Optical trapping of selected species of radioactive atoms has great potential in precision measurements for testing fundamental physics such as EDM, PNC and parity violating beta-decay asymmetry correlation coefficients.
D. Feldbaum +5 more
core +1 more source
IEEE Photonics Journal, 2019 Photonic crystal (PhC) cavities have been widely utilized for the optical trapping. However, it is still challenging to achieve high-efficiency optical trapping of ultrasmall nanoparticles.
Yan Gao, Yaocheng Shi
doaj +1 more source
Nanophotonics, 2020 Beyond diffraction limit, multitrapping of nanoparticles is important in numerous scientific fields, including biophysics, materials science and quantum optics.
Huang Lu +6 more
doaj +1 more source
Physical Review Research, 2021 Optical trapping using laser tweezer has revolutionized the field of force spectroscopy having enormous applications in biological manipulation. While a number of theories were developed for particles of different sizes to estimate trapping force under ...
Anita Devi, Arijit K. De
doaj +1 more source
Trapping of resonant metallic nanoparticles with engineered vectorial optical field
Nanophotonics, 2014 Optical trapping and manipulation using focused laser beams has emerged as a powerful tool in the biological and physical sciences. However, scaling this technique to metallic nanoparticles remains challenging due to the strong scattering force and ...
Rui Guanghao, Zhan Qiwen
doaj +1 more source
Photonics, 2020 As water is normally used as the immersion medium in optically trapped microsphere microscopy, the high-refractive-index barium titanate glass (BTG) microsphere shows a better imaging performance than the low-index polystyrene (PS) or melamine ...
Xi Liu, Song Hu, Yan Tang
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Calculation and optical measurement of laser trapping forces on non-spherical particles [PDF]
, 2001 Optical trapping, where microscopic particles are trapped and manipulated by light is a powerful and widespread technique, with the single-beam gradient trap (also known as optical tweezers) in use for a large number of biological and other applications.
Ashkin +34 more
core +2 more sources
Rotational dynamics of optically trapped polymeric nanofibers
, 2009 The optical trapping of polymeric nanofibers and the characterization of the rotational dynamics are reported. A strategy to apply a torque to a polymer nanofiber, by tilting the trapped fibers using a symmetrical linear polarized Gaussian beam is ...
Andrea Camposeo +51 more
core +1 more source