Hollow cylinder array metamaterial for high efficiency with polarization independence

Huang, Yusen; Wang, Bo; Liang, Guoyu; Xu, Yuqing; Shi, Xuantong; Liu, Ruijun; Huang, Xu; Huang, Yongyuan

doi:10.1016/j.optcom.2024.130307

Optics Communications

2024

DOI: 10.1016/j.optcom.2024.130307

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Hollow cylinder array metamaterial for high efficiency with polarization independence

Yusen Huang,

Bo Wang,

Guoyu Liang

et al.

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2024

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Polarization-independent and high-efficiency 2D dielectric transmission grating under Littrow incidence

Qiao,

Xie,

Kang

et al. 2024

Opt. Express

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In this paper, a transmission two-dimensional (2D) all-dielectric grating with cuboid arrays is proposed, which has high diffraction efficiency and good polarization independence under Littrow mounting conditions at an incident wavelength of 780 nm. The optimization results indicate that when the incident wavelength is 780 nm, the diffraction efficiency of the (−1, 0) order of transverse electric (TE) and transverse magnetic (TM) polarizations can reach 98.62% and 98.23%, respectively, with the polarization-dependent loss (PDL) of 0.017 dB. To the best of our knowledge, high-efficiency polarization-independent 2D transmission grating with a simpler and more effective structure is proposed for the first time, which demonstrates significant enhancements in bandwidth and manufacturing tolerances while maintaining high diffraction efficiency. The results suggest that the grating has great potential for applications in high-precision displacement measurements such as grating interferometers.

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Polarization-independent and high-efficiency 2D dielectric transmission grating under Littrow incidence

Qiao,

Xie,

Kang

et al. 2024

Opt. Express

View full text Add to dashboard Cite

show abstract

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Hollow cylinder array metamaterial for high efficiency with polarization independence

Cited by 1 publication

References 31 publications

Polarization-independent and high-efficiency 2D dielectric transmission grating under Littrow incidence

Polarization-independent and high-efficiency 2D dielectric transmission grating under Littrow incidence

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