Lens numerical aperture control with phase-change metasurfaces
conference contribution
posted on 2025-08-01, 15:51 authored by G Braid, C Ruiz de Galarreta, A Comley, J Bertolotti, CD WrightThe control of lens numerical aperture has many applications, including photography, imaging, and laser processing. Here we introduce active control of numerical aperture via a focusing phase-change meta-mirror. This can potentially operate at high speed in a low cost, light and compact format. We demonstrate designs for both infrared (3000 nm) and visible (632.8 nm) wavelengths.
Funding
Atomic Weapons Establishment (AWE)
EP/L015331/1
Engineering and Physical Sciences Research Council (EPSRC)
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© British Crown Owned Copyright 2022/AWE applies to this article.Notes
This is the author accepted manuscript.Publisher
E\PCOSName of conference
European Phase-Change and Ovonic Symposium (E\PCOS 2022)Location
Wolfson College, Oxford, UKVersion
- Accepted Manuscript
Language
enFCD date
2022-11-16T09:01:20ZFOA date
2022-11-29T15:44:21ZCitation
E\PCOS 2022 - European Phase-Change and Ovonic Symposium 18th-21st September 2022 - Oxford, UK. Poster P-26Department
- Physics and Astronomy
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