Generation of multiple focal holes by tightly focused azimuthally polarized double-ring-shaped beam with complex phase mask

Lalithambigai, K.; Anbarasan, P. M.; Rajesh, K. B.

doi:10.1016/j.ijleo.2013.10.051

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Cited by 4 publications

(1 citation statement)

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“…Du [10] generated optical bottle beams by focusing the non-diffracting Bessel beam using an axicon. Lalithambigai [11] proposed a scheme to obtain subwavelength focal dark holes by focusing the azimuthally polarized beam. A major disadvantage of this scheme is rigor for rigorous illuminant and high NA objective lens.…”

Section: Introductionmentioning

confidence: 99%

Clad photon sieve for generating localized hollow beams

Cheng

Tong

Zhu

et al. 2016

Optics and Lasers in Engineering

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Section: Introductionmentioning

confidence: 99%

Clad photon sieve for generating localized hollow beams

Cheng

Tong

Zhu

et al. 2016

Optics and Lasers in Engineering

View full text Add to dashboard Cite

Formation of optical needle by high NA lens axicon with dedicated complex spiral phase mask

Lalithambigai

Anbarasan

Rajesh³

2014

Opt Quant Electron

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Creation of identical multiple focal spots with three-dimensional arbitrary shifting

et al. 2017

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We propose a simple and flexible method to create identical multiple focal spots with three-dimensional arbitrary shifting without moving lenses or laser beams. The incident cylindrical vector (CV) beam superposed with predesigned phase and amplitude modulations is tightly focused by a single lens. The multiple focal spots with predetermined number and positions are generated and the identical intensity distribution as well as the polarization distribution for each individual focal spot is demonstrated. We also present a three-dimensional dynamic shifting with four identical focal spots along Pyramid-like trajectory by continuously regulating the phase and amplitude modulations on the incident CV beam. Furthermore, multiple focal spots with unique intensity profile can also be achieved when proper diffractive optical element (DOE) is associated in the focusing system. These engineered focal fields may find potential applications in 3D laser printing, moving multiple particles trapping and manipulations.

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Generation of multiple focal holes by tightly focused azimuthally polarized double-ring-shaped beam with complex phase mask

Cited by 4 publications

References 26 publications

Clad photon sieve for generating localized hollow beams

Clad photon sieve for generating localized hollow beams

Formation of optical needle by high NA lens axicon with dedicated complex spiral phase mask

Creation of identical multiple focal spots with three-dimensional arbitrary shifting

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