Control over parameters of photonic nanojets of dielectric microspheres

Geints, Yu. É.; Panina, E. K.; Zemlyanov, A. A.

doi:10.1016/j.optcom.2010.07.007

Cited by 91 publications

(61 citation statements)

References 16 publications

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“…[53][54][55]. Plane waves can be regarded as Gaussian beams with n = m LG = 0 and sufficiently small focusing parameter, f 1, which is defined after Eq.…”

Section: Photonic Nanojetsmentioning

confidence: 99%

“…The characteristic length and width of nanojets along with the peak intensity are known to strongly depend on a number of factors, such as the scatterer size R p , the particle absorption coefficient and the optical contrast ratio n p /n m . For microspheres, the results of a comprehensive numerical analysis including the case of shell particles are summarized in a recent paper [55].…”

Section: Photonic Nanojetsmentioning

confidence: 99%

See 1 more Smart Citation

Light scattering of Laguerre-Gaussian beams: near-field structures and symmetries

Kiselev¹,

Plutenko²

2016

Nanosystems: Phys. Chem. Math.

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We apply the method of far-field matching to remodel laser beams and study light scattering from spherical particles illuminated by a Laguerre-Gaussian (LG) light beam. The optical field in the near-field region is analyzed for purely azimuthal LG beams characterized by a nonzero azimuthal mode number m LG . The morphology of photonic nanojets is shown to significantly vary, depending the mode number and the scatterer's characteristics. The cases of negative index metamaterial and metallic Mie scatterers are discussed. We also discuss the symmetry properties of laser beams and related results for the optical forces. The near-field structure of optical vortices associated with the components of the electric field, being highly sensitive to the mode number, is found to be determined by the twofold rotational symmetry.

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“…[53][54][55]. Plane waves can be regarded as Gaussian beams with n = m LG = 0 and sufficiently small focusing parameter, f 1, which is defined after Eq.…”

Section: Photonic Nanojetsmentioning

confidence: 99%

Section: Photonic Nanojetsmentioning

confidence: 99%

Light scattering of Laguerre-Gaussian beams: near-field structures and symmetries

Kiselev¹,

Plutenko²

2016

Nanosystems: Phys. Chem. Math.

View full text Add to dashboard Cite

show abstract

“…[47][48][49]. Plane waves can be regarded as Gaussian beams with n = m LG = 0 and sufficiently small focusing parameter, f ≪ 1, which is defined after Eq.…”

Section: A Photonic Nanojetsmentioning

confidence: 99%

“…The characteristic length and width of nanojets along with the peak intensity are known to strongly depend on a number of factors such as the scatterer size R p , the particle absorption coefficient and the optical contrast ratio n p /n m . For microspheres, the results of a comprehensive numerical analysis including the case of shell particles are summarized in the recent paper [49].…”

Section: A Photonic Nanojetsmentioning

confidence: 99%

Mie scattering of Laguerre-Gaussian beams: Photonic nanojets and near-field optical vortices

Kiselev

Plutenko

2014

Phys. Rev. A

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We study Mie light scattering of Laguerre-Gaussian (LG) beams remodelled using the method of far-field matching. The theoretical results are applied to examine the optical field in the near-field region for purely azimuthal LG beams characterized by the nonzero azimuthal mode number m LG . The mode number m LG is found to have a profound effect on the morphology of photonic nanojets and the near-field structure of optical vortices associated with the components of the electric field.

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“…The utilization of photonic nanojet is limited by the short effective length of photonic nanojet because the short effective length only allows photonic nanojet to interact with near surface objects. Hence, photonic nanojets generated by a composite inhomogeneous microsphere or microcylinder consisting of several concentric shells with different materials are reported [15][16][17][18][19][20]. The longitudinal and latitudinal dimensions of a photonic nanojet depending on the optical contrast variation of shells have been investigated.…”

Section: Introductionmentioning

confidence: 99%

Geometric effect on photonic nanojet generated by dielectric microcylinders with non-cylindrical cross-sections

Liu

Lin

2016

Optics Communications

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Control over parameters of photonic nanojets of dielectric microspheres

Cited by 91 publications

References 16 publications

Light scattering of Laguerre-Gaussian beams: near-field structures and symmetries

Light scattering of Laguerre-Gaussian beams: near-field structures and symmetries

Mie scattering of Laguerre-Gaussian beams: Photonic nanojets and near-field optical vortices

Geometric effect on photonic nanojet generated by dielectric microcylinders with non-cylindrical cross-sections

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