New opportunities for custom-shape patterning using polarization control in confocal laser beam interference setup
Fabrication of photonic devices requires fast and reliable microstructuring approach. For example, efficient generation of fine 2D patterns in thin metal films is needed in plasmonic metamaterial devices. In this paper, the authors present an approach for the flexible generation of the periodic patt...
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Veröffentlicht in: | Journal of laser applications 2017-02, Vol.29 (1) |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | Fabrication of
photonic devices requires fast and reliable microstructuring approach. For example,
efficient generation of fine 2D patterns in thin metal films is needed in plasmonic
metamaterial
devices. In this paper, the authors present an approach for the flexible generation of the
periodic pattern
using a laser beam
interference patterning setup. So far, interference patterning was mostly limited
to the periodic patterns of lines and dots. A variety of interference patterns can be significantly
increased by controlling the polarization orientation of each interfering beam. The authors
demonstrate the experimental setup for polarization control in the confocal six-beam interference
configuration. Various periodic intensity patterns were generated and observed with a CCD
camera using this
setup. Additionally, the generated patterns were replicated in a thin metal film experimentally.
Efficient and simple fabrication process and relatively high patterning flexibility suggest
that interference patterning with polarization control may become an important tool in metamaterial
fabrication. |
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ISSN: | 1042-346X 1938-1387 |
DOI: | 10.2351/1.4976679 |