TY - JOUR
T1 - Two-Dimensional Polarization Gratings Realized via Photopatterning Liquid Crystals
AU - Liang, Zhijie
AU - Wei, Bing Yan
AU - Chen, Weiqi
AU - Guo, Xiucheng
AU - Liu, Sheng
AU - Li, Peng
AU - Wen, Dandan
AU - Gao, Kaikai
AU - Zhao, Jianlin
N1 - Publisher Copyright:
© 2024 American Chemical Society.
PY - 2024/7/26
Y1 - 2024/7/26
N2 - Polarization gratings (PGs) are powerful tools to modulate an incident beam, boosting a wide range of applications in optics and photonics. Compared with one-dimensional (1D) PGs, two-dimensional (2D) PGs have an advantage of generating multiple beams, promoting the development of more functional applications. However, the variety of current 2D PGs is relatively limited, and the diffraction efficiency still needs improvement. Here, we propose a way to design multiple types of 2D PGs and improve the diffraction efficiency based on precisely controlled microstructures realized via photopatterning liquid crystals (LCs). The LC 2D PGs can efficiently generate polarization-controllable diffraction orders in different array patterns with a maximum diffraction efficiency of 80.7%, and the experiment results match well with simulations. The proposed LC 2D PGs with outstanding performance may facilitate their applications in spectroscopy, beam steering, optical communication, and modern display fields.
AB - Polarization gratings (PGs) are powerful tools to modulate an incident beam, boosting a wide range of applications in optics and photonics. Compared with one-dimensional (1D) PGs, two-dimensional (2D) PGs have an advantage of generating multiple beams, promoting the development of more functional applications. However, the variety of current 2D PGs is relatively limited, and the diffraction efficiency still needs improvement. Here, we propose a way to design multiple types of 2D PGs and improve the diffraction efficiency based on precisely controlled microstructures realized via photopatterning liquid crystals (LCs). The LC 2D PGs can efficiently generate polarization-controllable diffraction orders in different array patterns with a maximum diffraction efficiency of 80.7%, and the experiment results match well with simulations. The proposed LC 2D PGs with outstanding performance may facilitate their applications in spectroscopy, beam steering, optical communication, and modern display fields.
KW - diffraction patterns
KW - liquid crystals
KW - photoalignment techniques
KW - polarization controllability
KW - two-dimensional polarization gratings
UR - http://www.scopus.com/inward/record.url?scp=85195144758&partnerID=8YFLogxK
U2 - 10.1021/acsaom.3c00429
DO - 10.1021/acsaom.3c00429
M3 - 文章
AN - SCOPUS:85195144758
SN - 2771-9855
VL - 2
SP - 1287
EP - 1294
JO - ACS Applied Optical Materials
JF - ACS Applied Optical Materials
IS - 7
ER -