holographic fabrication of designed functional defect lines in photonic crystal lattice using a spatial light modulator
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2016
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Abstract
We report the holographic fabrication of designed defect lines in photonic crystal lattices through phase engineering using a spatial light modulator (SLM). The diffracted beams from the SLM not only carry the defect’s content but also the defect related phase-shifting information. The phase-shifting induced lattice shifting in photonic lattices around the defects in three-beam interference is less than the one produced by five-beam interference due to the alternating shifting in lattice in three beam interference. By designing the defect line at a 45 degree orientation and using three-beam interference, the defect orientation can be aligned with the background photonic lattice, and the shifting is only in one side of the defect line, in agreement with the theory. Finally, a new design for the integration of functional defect lines in a background phase pattern reduces the relative phase shift of the defect and utilizes the different diffraction efficiency between the defect line and background phase pattern. We demonstrate that the desired and functional defect lattice can be registered into the background lattice through the direct imaging of designed phase patterns.
| Reference Key |
lutkenhaus2016micromachinesholographic
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|---|---|
| Authors | ;Jeffrey Lutkenhaus;David Lowell;David George;Hualiang Zhang;Yuankun Lin |
| Journal | chemistryopen |
| Year | 2016 |
| DOI |
10.3390/mi7040059
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| URL | |
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