Photonic hook: a new curved light beam

Yue, Liyang; Minin, Oleg V.; Wang, Zengbo; Monks, James N.; Shalin, Alexander S.; Minin, Igor V.

doi:10.1364/ol.43.000771

Cited by 117 publications

(97 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…That is, such structured light beams have the maximum acceleration among the known curvilinear beams -the curvature of electromagnetic waves with such a small radius were described for the first time in Refs. [26,27] and confirmed experimentally in this year 2019, by Minin and Minin and colleagues in THz [28]. The phenomenon of photonic hook was demonstrated also for surface plasmon wave [29] realized in the in-plane of the interface despite the strong energy dissipation at metal surface.…”

Section: Introductionmentioning

confidence: 72%

“…On the other hand, recently, a new family of near-field localized curved optical beams has been discovered by Minin and Minin [26], which differs from the family of Airy beams. This new family is able to form in the near-field zone the so-called "photonic hook", which is selfbending (transversely accelerate) throughout propagation in near field in free space [27].…”

Section: Introductionmentioning

confidence: 99%

“…Taking into account this formal analogy between electromagnetic and acoustic waves [31] it can be expected that the photonic hook formation method [27] can be adapted to acoustics.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Acoustical hooks: A new subwavelength self-bending beam

2020

Self Cite

View full text Add to dashboard Cite

In this work, we report the observation of a new type of near-field curved acoustic beam different from the Airy-family beams both through simulations and experiment. This new self-bending acoustical beam is generate from a rectangular trapezoid of a polymer material immersed in water and has unique features. The radius of curvature of acoustical hook is less than the wavelength, it is represents the smallest radius of curvature ever recorded for any acoustical beams. The origin of this curved beam is in the vortices of intensity flow that appear inside the solid due to the conversion of the incident longitudinal wave mode to a shear wave in a solid. These vortices redirect the intensity flow, which causes the beam to bend. These results may be potentially useful when an object, that is in the path of the beam, must be avoid, such as in cancer treatments in which tumors are found behind bones such as ribs. It could also have potential applications in particle manipulations.

show abstract

Section: Introductionmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Acoustical hooks: A new subwavelength self-bending beam

2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…The curvature degrees, lengths of the photonic hooks and the inflection points can be modulated by varying the refractive indices of the twin-ellipse microcylinder and the ratios of the semi-major radius to semi-minor radius. Comparison with the traditional photonic hooks, these hooks not only have two totally same and symmetric branches, the microparticle also is symmetric, while the photonic hook from previous researches were created by an asymmetric model (combined a cuboid and a prism) [8], [9]. The key difference relative to the traditional twin photonic jets is that the two branches of these photonic hooks have identical E 2 filed enhancement distribution which is only illuminated by a single illuminated plane wave.…”

Section: Introductionmentioning

confidence: 99%

Twin Photonic Hooks Generated by Twin-Ellipse Microcylinder

Shen

Shao

et al. 2020

IEEE Photonics J.

View full text Add to dashboard Cite

Recently, two special photonic jets, photonic hooks and twin photonic jets, have been proposed to deal with complex conditions in nanoscale manipulation. Photonic hooks are generated by a single light plane wave and an asymmetric microparticle, while the twin photonic jets are produced by two incident light beams. In this letter, we presented and demonstrate a method to combine photonic hooks and twin photonic jets. A single light plane wave and a symmetric microparticle, twin-ellipse microcylinder, are used in this research. The curvature degree, length and maximum E 2 filed enhancement of twin photonic hooks are varied significantly, with the change of refractive indices and shape of twin-ellipse microcylinder. And a liquid-immersed core-shell is built to achieve a flexible tunability. _____________________________ a) Electronic

show abstract

“…The shape features and field distributions of the PJs, under given conditions of certain environmental medium and illumination source, are depended on the geometrical morphologies and material properties of the investigated dielectric microparticles [17][18][19][20]. By introducing a triangular prism adjacent to the front side of a cuboid surface [6,7], the phase velocity and wave interference of the transmitted light in the upper and lower parts of the microparticle are different due to the break of particle's shape symmetry, and thus producing a curved PJ, i.e. PH.…”

Section: Introductionmentioning

confidence: 99%

Photonic hooks from Janus microcylinders

Shao

Song

et al. 2019

Opt. Express

View full text Add to dashboard Cite

Recently, a type of curved light beams, photonic hooks (PHs), was theoretically predicted and experimentally observed. The production of photonic hook (PH) is due to the breaking of structural symmetry of a plane-wave illuminated microparticle. Herein, we presented and implemented a new approach, of utilizing the symmetry-broken of the microparticles in material composition, for the generation of PHs from Janus microcylinders. Finite element method based numerical simulation and energy flow diagram represented theoretical analysis were used to investigate the field distribution characteristics and formation mechanism of the PHs. The full width at half-maximum (FWHM) of the PH (~0.29λ) is smaller than the FWHM of the photonic nanojet (~0.35λ) formed from a circular microcylinder with the same geometric radius. By changing the refractive index contrasts between upper and lower half-cylinders, or rotating the Janus microcylinder relative to the central axis, the shape profiles of the PHs can be efficiently modulated. The tunability of the PHs through simple stretching or compression operations, for the Janus microcylinder constituted by one solid inorganic halfcylinder and the other flexible polymer half-cylinder, was studied and discussed as well.

show abstract

Photonic hook: a new curved light beam

Cited by 117 publications

References 21 publications

Acoustical hooks: A new subwavelength self-bending beam

Acoustical hooks: A new subwavelength self-bending beam

Twin Photonic Hooks Generated by Twin-Ellipse Microcylinder

Photonic hooks from Janus microcylinders

Contact Info

Product

Resources

About