@article{01HJ3M8VBDKW1QYCJQFJYFCYMR,
  abstract     = {{Thermotropic liquid crystals have recently become popular for use in optical components for augmented and virtual reality. Chiral liquid crystal (CLC), is of particular interest due to the formation of a photonic bandgap that allows for the creation of polarization-sensitive reflective optical components. Previous investigations have studied 2D diffraction gratings based on long-pitch (5 mu m) CLC in combination with a 2D periodic alignment configuration. This yielded 2D diffraction patterns in transmission with the ability to switch between high and low voltage states with hysteresis. In the current study, short-pitch CLC (400 nm and 1 mu m) is deposited between two substrates with perpendicularly rotating periodic photoalignment patterns, the shorter pitch resulting in a diffraction grating that produces a 2D diffraction pattern in reflection for wavelengths in the visible range. While a relatively high diffraction efficiency is achieved in the first diffraction order, additional diffraction orders with lower efficiency are present due to the complex CLC configuration in the bulk.}},
  articleno    = {{123734}},
  author       = {{Stebrytė, Miglė and Nys, Inge and Beeckman, Jeroen and Neyts, Kristiaan}},
  issn         = {{0167-7322}},
  journal      = {{JOURNAL OF MOLECULAR LIQUIDS}},
  keywords     = {{Materials Chemistry,Physical and Theoretical Chemistry,Spectroscopy,Condensed Matter Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Liquid crystals,Patterned photoalignment,Diffraction,Diffraction grating}},
  language     = {{eng}},
  pages        = {{6}},
  title        = {{Reflective 2D diffraction grating based on short pitch chiral liquid crystal}},
  url          = {{http://doi.org/10.1016/j.molliq.2023.123734}},
  volume       = {{394}},
  year         = {{2024}},
}

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