Twisted longitudinally polarized field in the focal region

Vyas, Sunil; Kozawa, Yuichi; Sato, Shunichi

doi:10.1007/s00340-012-5239-7

Cited by 5 publications

(2 citation statements)

References 39 publications

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“…6, although other combinations of OAM modes could also produce similar intensity patterns. Such rotating fields have been previously demonstrated using spiral-zone plates [18] and have been explained using superposition of two optical vortex beams [19][20][21]. Whereas vector vortex beams from VCSELs with frequency selective external feedback have been previously reported [22], to the best of our knowledge this is the first time such rotating fields have been experimentally observed from a VCSEL with an integrated spiral plate.…”

Section: (D) a Top-view Optical Microscope Image Of Spiralmentioning

confidence: 77%

Orbital Angular Momentum Modes From VCSELs Using Grayscale Photolithography

Kumar

Strzebonski

Lakomy

et al. 2021

IEEE Photon. Technol. Lett.

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Section: (D) a Top-view Optical Microscope Image Of Spiralmentioning

confidence: 77%

Orbital Angular Momentum Modes From VCSELs Using Grayscale Photolithography

Kumar

Strzebonski

Lakomy

et al. 2021

IEEE Photon. Technol. Lett.

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“…Such an anomalous behavior is in principle attributed to the GPS, [52,53] which depicts that a diffracted electromagnetic beam propagating through the focus undergoes additional phase change relative to a plane wave. There are diverse ways to govern the GPS, for example, temporal reshaping, [54] two-beam coupling, [55,56] and wavefront coding. [57] Among these approaches, using the two-beam interference is a preferable method, due to its unprecedented capability to flexibly revolve the focal intensity distributions, enabling the magnetization twisting manifolds based upon the IFE.…”

Section: Conceptual Paradigmmentioning

confidence: 99%

Twisting Polarization‐Tunable Subdiffraction‐Limited Magnetization through Vectorial Beam Coupling

Liu

Yan

Liang

et al. 2021

Advanced Photonics Research

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Light-induced switching and manipulation of the magnetization in magneto-optical (MO) materials has enjoyed continuous growing interests due to its potential alluring applications, such as all-optical magnetic recording/storage, [1][2][3][4] magnetic resonance microscopy, [5,6] atom trapping, [7,8] and magnetic holography, [9,10] among other feats. In particular, according to the prediction by International Data Corporation, the total data amount generated globally will reach up to 160ZB (1ZB ¼ 10 12 GB) by the year 2025. [11,12] Such a vast quantity of data elicits an urge to develop bran-new magnetization-based storage technologies. In these contexts, the inverse Faraday effect (IFE) first pioneered in the 1960s has revived as a mainstream leading mechanism giving insights into diverse optomagnetic phenomena, [13][14][15] principally because the light fields tailored either by amplitude/ phase/polarization modulator or by spin/ orbital angular momentum generator could couple strongly with the engineered magnetic systems. [16][17][18][19][20][21] Whereupon a variety of light-triggered subdiffraction-scale versatile magnetization fields with tunable polarization orientations and exotic spatial textures can be achieved by leveraging the canonical IFE, which holds the key for most applications, especially for high-density and low-energy consumption optomagnetic storage. Unlike the circularly polarized beam excitation, [22,23] the well-engineered vectorial beams under tight focusing are able to produce not only purely longitudinal subdiffractionlimited magnetization but also high-purity transverse magnetization, [24,25] which would foster vast opportunities for

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Tightly focusing vector circular airy beam through a hard aperture

She¹

2015

Optics Communications

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Twisted longitudinally polarized field in the focal region

Cited by 5 publications

References 39 publications

Orbital Angular Momentum Modes From VCSELs Using Grayscale Photolithography

Orbital Angular Momentum Modes From VCSELs Using Grayscale Photolithography

Twisting Polarization‐Tunable Subdiffraction‐Limited Magnetization through Vectorial Beam Coupling

Tightly focusing vector circular airy beam through a hard aperture

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