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Soft patterning on cylindrical surface of plastic optical fiber
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10.1116/1.3656802
/content/avs/journal/jvstb/29/6/10.1116/1.3656802
http://aip.metastore.ingenta.com/content/avs/journal/jvstb/29/6/10.1116/1.3656802
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Patterning procedure on the cylindrical surface of POFs by a combination of sliding planar-mold stages and 180° -rotatable reel stations. (Right) Photographs of thermal imprint stages during pressing, and reel station during 180° rotation.

Image of FIG. 2.
FIG. 2.

Confocal micrographs of electroformed-Ni molds with: (a) a 10 -μm-width square dotted pattern, and (b) a 10-μm-diameter circular dotted pattern.

Image of FIG. 3.
FIG. 3.

Relationship between press depth and measured depth of the imprinted patterns on the POFs using (a) the upper mold with a 10-μm-width square dotted pattern, and (b) the lower mold with a 10-μm-diameter circular dotted pattern. “Th” in the explanatory note denotes the heating temperature of the molds.

Image of FIG. 4.
FIG. 4.

(Color online) Relationship between the press depth and measured diameter of the imprinted core of the POFs. “Th” in the figure denotes the heating temperature of the molds. Optical micrographs of the cross-sectional core after thermal-imprinting on POFs. Molding conditions, such as the heating temperatures and press depths were, respectively, (A) 25 °C and 10 μm, and (B) 125 °C and 50 μm.

Image of FIG. 5.
FIG. 5.

(Color online) Relationship between the rotation angle and measured depth of the imprinted patterns on the POFs using (a) the upper mold with a 10-μm-width square dotted pattern, and (b) the lower mold with a 10-μm-diameter circular dotted pattern. The inset illustration shows the contact and release edges of the imprinted patterns on the POFs.

Image of FIG. 6.
FIG. 6.

(Color online) Optical micrographs of the character patterns with diffraction grating structures transferred from the planar electroformed-Ni molds to the cylindrical surface of the POF.

Image of FIG. 7.
FIG. 7.

(Color online) (a) Optical micrograph of the character patterns in the planar electroformed-Ni mold. (b) FE-SEM image of diffraction grating structures in the characters “AM” in the mold, observed at an inclined angle of 45°. (c) FE-SEM images of the character patterns on the POF after 10-nm-thick Pt was sputter-deposited. (d) FE-SEM image of the diffraction grating structures in the characters “MA” on the POF, observed at an inclined angle of 0°.

Image of FIG. 8.
FIG. 8.

(a) and (b) Expanded FE-SEM images of diffraction grating structures in the character “M” with linewidths of 1 and 2 μm in the mold, respectively, observed at an inclined angle of 45°. (c) and (d) Expanded FE-SEM images of the diffraction grating structures in the character “M” with linewidths of 1 and 2 μm, on the POF after 10-nm-thich Pt was sputter-deposited, respectively, observed at an inclined angle of 45°.

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/content/avs/journal/jvstb/29/6/10.1116/1.3656802
2011-10-27
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Soft patterning on cylindrical surface of plastic optical fiber
http://aip.metastore.ingenta.com/content/avs/journal/jvstb/29/6/10.1116/1.3656802
10.1116/1.3656802
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