Feature Papers in Optical Sensors 2022

Passaro, Vittorio M. N.; Semenova, Yuliya; Miller, Benjamin L.

doi:10.3390/s23073696

Sensors

2023

DOI: 10.3390/s23073696

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Feature Papers in Optical Sensors 2022

Vittorio M. N. Passaro

Yuliya Semenova

Benjamin L. Miller

Abstract: Today, optical sensors are the subject of a very significant number of studies and applications [...]

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2024

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Polarization variable line-space grating based on photoalignment liquid crystal

Chen,

Shen,

et al. 2024

Opt. Lett.

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The application of a liquid crystal (LC) in displays has driven the development of novel LC elements. In this Letter, polarization variable line-space (PVLS) gratings based on photoalignment are fabricated, and their variable-spacing properties are derived using the vector diffraction theory. Both transmissive and reflective PVLS gratings are fabricated to validate the correctness of the derivation. Experimental results indicate that PVLS gratings have a wider wavelength response bandwidth than that of polarization volume grating (PVG). PVLS gratings have angle selectivity, and a large incident angle causes wavelength blueshift. Additionally, the relationship between wavelength and focal length indicates its anomalous dispersion as a diffractive optical element. These results of photoalignment-based PVLS gratings provide valuable insights for the advancement of displays and have the potential to improve visual experiences.

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Polarization variable line-space grating based on photoalignment liquid crystal

Chen,

Shen,

et al. 2024

Opt. Lett.

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show abstract

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Feature Papers in Optical Sensors 2022

Abstract: Today, optical sensors are the subject of a very significant number of studies and applications [...]

Cited by 1 publication

References 15 publications

Polarization variable line-space grating based on photoalignment liquid crystal

Polarization variable line-space grating based on photoalignment liquid crystal

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