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Photopolymerized microscopic vortex beam generators: Precise delivery of optical orbital angular momentum
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10.1063/1.3517519
/content/aip/journal/apl/97/21/10.1063/1.3517519
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/21/10.1063/1.3517519
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) SEM images of a diameter SPP, the arrow indicates the laser writing scan direction. (b) Optical profilometry image of a diameter SPP with for an operating wavelength in air . (c) Atomic force microscope image of the SPP surface. (d) and (e) Top-view SEM image of an array of SPPs and a single SPP suspended in the air, respectively. (f) Three-dimensional view of the structure shown in panel (e) where each point refers to the location of a laser written voxel.

Image of FIG. 2.
FIG. 2.

Far field intensity pattern when a focused Gaussian beam (waist ) is normally incident onto a SPP (radius ) located in the focal plane of the incident beam with different integer topological charges . The data correspond to with and the distance between the SPP plane and the observation plane is a few tens of the Rayleigh distance. Upper row: experimental data. Bottom row: calculated profiles.

Image of FIG. 3.
FIG. 3.

Diffraction intensity patterns at different observation planes for with and . Upper row: experimental data. Bottom row: calculated profiles where the value of is adjusted to visually match the observed pattern.

Image of FIG. 4.
FIG. 4.

Spiraling diffraction intensity patterns in the observation planes where a well-defined -fold symmetry is visible. Here with and . Upper row: experimental data. Bottom row: calculated profiles where the value of is adjusted to visually match the observed pattern.

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/content/aip/journal/apl/97/21/10.1063/1.3517519
2010-11-23
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photopolymerized microscopic vortex beam generators: Precise delivery of optical orbital angular momentum
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/21/10.1063/1.3517519
10.1063/1.3517519
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