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Simple fabrication technique of distributed-feedback polymer laser by direct photonanoimprint lithography
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1.
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Figures

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FIG. 1.

Schematic depiction for photo-NIL fabrication procedure of polymeric DFB lasers.

Image of FIG. 2.

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FIG. 2.

(a) Images of a nanoimprinted thin film observed from different angles. Optical interference showing existence of grating corrugation can be confirmed. (b) SEM image of grating pattern fabricated on surface of polymeric thin film doped with Rhodamine 610.

Image of FIG. 3.

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FIG. 3.

Optically pumped emission spectra of -DFB lasers fabricated by photo-NIL (a) in air and (b) in vacuum. The pumping density was . The inset is image of the -DFB laser fabricated in vacuum under the optical pumping.

Image of FIG. 4.

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FIG. 4.

Normalized emission intensities output from fabricated polymeric DFB lasers. Closed triangle, closed circle, and open circle show the data for -, -, and -DFB lasers, respectively.

Image of FIG. 5.

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FIG. 5.

Emission spectra for (a) - and (b) -DFB devices under optical pumping density of . The insets are images of the DFB devices under the optical pumping.

Tables

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Table I.

Materials and device parameters for each polymeric DFB laser fabricated by photo-NIL.

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/content/aip/journal/apl/92/24/10.1063/1.2945632
2008-06-18
2014-04-20

Abstract

This paper describes a fabrication technique of polymeric distributed-feedback lasers using the photonanoimprint lithography. In devices with a grating structure, which was imprinted directly onto the active layer surface in vacuum, single-mode laser oscillations were easily obtained. The emission color of the distributed-feedback laser can be controlled only by changing dopingmaterial and grating period of the master mold. It was demonstrated that the nanoimprint lithography would be a key technology for development of a multicolor light source.

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Scitation: Simple fabrication technique of distributed-feedback polymer laser by direct photonanoimprint lithography
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/24/10.1063/1.2945632
10.1063/1.2945632
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