Two-dimensional switchable blue phase gratings manufactured by nanosphere lithography

M. Wahle, K. Brassat, J. Ebel, J. Bürger, J. Lindner, H.S. Kitzerow, Optics Express 25 25 (2017) 22608–22619.

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Journal Article | Published | English
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Abstract
Switchable two dimensional liquid crystal diffraction gratings are promising can- didates in beam steering devices, multiplexers and holographic displays. For these areas of applications a high degree of integration in optical systems is much sought-after. In the context of diffraction gratings this means that the angle of diffraction should be rather high, which typically poses a problem as the fabrication of small grating periods is challenging. In this paper, we propose the use of nanosphere lithography (NSL) for the fabrication of two-dimensionally structured electrodes with a periodicity of a few micrometers. NSL is based on the self-assembly of micro- or nanometer sized spheres into monolayers. It allows for easy substrate structuring on wafer scale. The manufactured electrode is combined with a liquid crystalline polymer-stabilized blue phase, which facilitates sub-millisecond electrical switching of the diffraction efficiency at adiffractionangle of 21.4°.
Publishing Year
Journal Title
Optics Express 25
Volume
25
Issue
19
Page
22608-22619
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Wahle M, Brassat K, Ebel J, Bürger J, Lindner J, Kitzerow HS. Two-dimensional switchable blue phase gratings manufactured by nanosphere lithography. Optics Express 25. 2017;25(19):22608-22619. doi:10.1364/OE.25.022607
Wahle, M., Brassat, K., Ebel, J., Bürger, J., Lindner, J., & Kitzerow, H. S. (2017). Two-dimensional switchable blue phase gratings manufactured by nanosphere lithography. Optics Express 25, 25(19), 22608–22619. https://doi.org/10.1364/OE.25.022607
@article{Wahle_Brassat_Ebel_Bürger_Lindner_Kitzerow_2017, title={Two-dimensional switchable blue phase gratings manufactured by nanosphere lithography}, volume={25}, DOI={10.1364/OE.25.022607}, number={19}, journal={Optics Express 25}, author={Wahle, M. and Brassat, Katharina and Ebel, J. and Bürger, Julius and Lindner, Jörg and Kitzerow, H.S.}, year={2017}, pages={22608–22619} }
Wahle, M., Katharina Brassat, J. Ebel, Julius Bürger, Jörg Lindner, and H.S. Kitzerow. “Two-Dimensional Switchable Blue Phase Gratings Manufactured by Nanosphere Lithography.” Optics Express 25 25, no. 19 (2017): 22608–19. https://doi.org/10.1364/OE.25.022607.
M. Wahle, K. Brassat, J. Ebel, J. Bürger, J. Lindner, and H. S. Kitzerow, “Two-dimensional switchable blue phase gratings manufactured by nanosphere lithography,” Optics Express 25, vol. 25, no. 19, pp. 22608–22619, 2017.
Wahle, M., et al. “Two-Dimensional Switchable Blue Phase Gratings Manufactured by Nanosphere Lithography.” Optics Express 25, vol. 25, no. 19, 2017, pp. 22608–19, doi:10.1364/OE.25.022607.
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