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1.中国科学院 长春光学精密机械与物理研究所, 吉林 长春 130033
2.中国科学院大学 材料科学与光电工程中心, 北京 100049
3.光学系统先进制造全国重点实验室, 吉林 长春 130033
薛博森,男,硕士研究生,2024年于燕山大学获得学士学位,主要从事液晶器件方面的研究。E-mail:xuebosen24@ mails.ucas.ac.cn
彭增辉,男,博士,研究员,2005年于中国科学院长春光学精密机械与物理研究所获得博士学位,主要从事液晶材料与器件的应用基础研究及工程化应用、成果转化应用方面的研究。E-mail:peng@ ciomp.ac.cn
收稿:2026-05-02,
修回:2026-05-16,
纸质出版:2026-06-06
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薛博森, 查正桃, 穆全全, 等. 硅基芯片能量效率的分析与优化[J]. 液晶与显示, 2026,41(6):783-792.
XUE Bosen, ZHA Zhengtao, MU Quanquan, et al. Analysis and optimization of energy efficiency for silicon-based chips[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(6): 783-792.
薛博森, 查正桃, 穆全全, 等. 硅基芯片能量效率的分析与优化[J]. 液晶与显示, 2026,41(6):783-792. DOI: 10.37188/CJLCD.2026-0078. CSTR: 32172.14.CJLCD.2026-0078.
XUE Bosen, ZHA Zhengtao, MU Quanquan, et al. Analysis and optimization of energy efficiency for silicon-based chips[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(6): 783-792. DOI: 10.37188/CJLCD.2026-0078. CSTR: 32172.14.CJLCD.2026-0078.
为解决小像素尺寸硅基芯片能量效率低、标量衍射理论计算精度不足的问题,本文围绕硅基芯片能量效率开展精确计算与优化研究。分别采用标量衍射理论与时域有限差分(Finite-Difference Time-Domain,FDTD)方法对硅基芯片的能量效率展开计算,并搭建532 nm激光测试系统进行实验验证。选用TiO
2
/SiO
2
材料设计
λ
/4型多层介质高反膜,通过FDTD仿真分析了膜系周期数、工作波长对能量效率优化规律的影响。研究结果表明,对于当前常见像素尺寸(像素周期2~8 μm)的硅基芯片,采用FDTD方法计算得到的能量效率与实验结果的绝对误差小于1%;镀多层介质膜可以有效提升芯片能量效率,当反射膜周期单元数达到5时,各像素尺寸芯片在450~625 nm波长范围内能量效率均达95%以上。
To solve the problems of low energy efficiency of small-pixel silicon-based chips and insufficient calc
ulation accuracy of the scalar diffraction theory, this study conducts precise calculation and optimization research on the energy efficiency of silicon-based chips. The energy efficiency of silicon-based chips is calculated using both the scalar diffraction theory and the Finite-Difference Time-Domain(FDTD) method, and an experimental verification is carried out by building a 532 nm laser testing system. A
λ
/4-type multilayer dielectric high-reflection coating is designed using TiO
2
/SiO
2
materials, and the optimization rules of the number of coating periods and operating wavelength on energy efficiency are analyzed via FDTD simulations. The research results show that for the currently common silicon-based chips with small pixel sizes(pixel period: 2~8 μm), the absolute error between the energy efficiency calculated by the FDTD method and the experimental results is less than 1%. Coating the multilayer dielectric film can effectively improve the energy efficiency of the chip; when the number of reflective coating periods reaches 5, the energy efficiency of chips of various pixel sizes exceeds 95% in the wavelength range of 450~625 nm.
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