Inverse design of mid-infrared diamond waveguide beam splitter

被引：1
|
作者：
Li, Yihao [1 ]
Chen, Shu [1 ]
Yu, Yanan [1 ]
Li, Chen [1 ]
Xiao, Ting-Hui [1 ,2 ,3 ,4 ]
机构：
[1] Zhengzhou Univ, Sch Phys, Lab Zhongyuan Light, Zhengzhou 450001, Peoples R China
[2] Zhengzhou Univ, Sch Phys, Key Lab Mat Phys, Minist Educ, Zhengzhou 450001, Peoples R China
[3] Henan Acad Sci, Inst Quantum Mat & Phys, Zhengzhou 450046, Peoples R China
[4] Univ Tokyo, Sch Sci, Dept Chem, Tokyo 1130033, Japan
来源：
OPTICS LETTERS | 2024年 / 49卷 / 13期
关键词：
SILICON;
D O I：
10.1364/OL.526023
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Diamond is a supreme material for mid-infrared (MIR) integrated photonics as it has a transparency window up to 20 mu m that covers the entire fingerprint region. However, its relatively low refractive index poses a challenge in designing an MIR diamond functional device with both small footprint and high transmission efficiency. Here we propose and demonstrate the inverse design of an MIR diamond waveguide beam splitter operating at the wavelength of 15 mu m with a small footprint of- 15 mu m x- 15 mu m and a total transmission efficiency above 95%. Our work paves a new avenue for the design of compact and high-efficiency MIR diamond photonic devices. (c) 2024 Optica Publishing Group
引用
收藏
页码：3620 / 3623
页数：4
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