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dc.contributor.authorWang, Yu-Jenen_US
dc.contributor.authorLin, Yi-Hsinen_US
dc.contributor.authorCakmakci, Ozanen_US
dc.contributor.authorReshetnyak, Victoren_US
dc.date.accessioned2020-07-01T05:21:18Z-
dc.date.available2020-07-01T05:21:18Z-
dc.date.issued2020-03-16en_US
dc.identifier.issn1094-4087en_US
dc.identifier.urihttp://dx.doi.org/10.1364/OE.389647en_US
dc.identifier.urihttp://hdl.handle.net/11536/154376-
dc.description.abstractWe demonstrate, for the first time, an electrically-tunable and physically-planar freeform optical element made up of nematic liquid crystals (LCs). Continued on numerical study in previous paper (Part I), experimental results here show that it is possible to break the rotational symmetry of the wavefront through the use of uneven tilt angles of the LC molecules even though the electric potential is rotationally symmetric. Our optical element offers the ability to electrically tune the direction of the optical axis, the wavefront deviation, as well as the Zernike polynomials for general descriptions of wavefronts. Corresponding Zernike coefficients of a Zernike polynomial that are related to defocus and spherical aberration, which can be adjusted individually or together. The minimum wavefront deviation is >lambda/16. The Zernike coefficients related to coma aberration or the tilt of the optical axis are also electrically tunable. By incorporating our LC phase modulator with tunability of freeform wavefronts into a simple reflective optical system, we demonstrate convincing image performance for off-axis image aberration correction. This approach will inspire further development and design of LC optical elements for applications, such as hyperspectral imagers in aerospace optics, augmented reality, virtual reality, quantum information systems, innovative miniaturized reflective telescopic systems for astrophysics, planetary science, and earth science. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreementen_US
dc.language.isoen_USen_US
dc.titlePhase modulators with tunability in wavefronts and optical axes originating from anisotropic molecular tilts under symmetric electric field II: experimentsen_US
dc.typeArticleen_US
dc.identifier.doi10.1364/OE.389647en_US
dc.identifier.journalOPTICS EXPRESSen_US
dc.citation.volume28en_US
dc.citation.issue6en_US
dc.citation.spage8985en_US
dc.citation.epage9001en_US
dc.contributor.department光電工程學系zh_TW
dc.contributor.departmentDepartment of Photonicsen_US
dc.identifier.wosnumberWOS:000522511600101en_US
dc.citation.woscount0en_US
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