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13 March 2024 Keys to fabricating high-quality geo-phase planar optics
Nelson V. Tabiryan, Jonathan Slagle, Michael McConney, Timothy J. Bunning
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Proceedings Volume PC12907, Emerging Liquid Crystal Technologies XIX; PC129070C (2024) https://doi.org/10.1117/12.3006433
Event: SPIE OPTO, 2024, San Francisco, California, United States
Abstract
Unlike any other technology, planar optical components based on geometrical phase modulation can combine fundamentally 100% efficiency in broad spectral bandwidths and for wide range of angles. Their truly planar and smooth structure ensures no haze and provides an opportunity for anti-reflection coatings further enhancing transmission. As, essentially, diffractive waveplates, they allow integration of multiple layers for complex spectral and polarization engineering. Achieving perfection is not easy though since it requires meeting tight tolerances on a multitude of fabrication processes and materials. We will present the results of tolerance analysis for different architectures of geo-phase optics, and will discuss the performance of some of most challenging components we have been fabricating.
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Nelson V. Tabiryan, Jonathan Slagle, Michael McConney, and Timothy J. Bunning "Keys to fabricating high-quality geo-phase planar optics", Proc. SPIE PC12907, Emerging Liquid Crystal Technologies XIX, PC129070C (13 March 2024); https://doi.org/10.1117/12.3006433
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KEYWORDS
Tolerancing
Engineering
Fabrication
Materials processing
Multilayers
Optical components
Optical transmission
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