Large quality factor enhancement based on cascaded uniform lithium niobate bichromatic photonic crystal cavities

被引：14

作者：

Ge, Rui ^{[1
]}

Yan, Xiongshuo ^{[1
]}

Liang, Zhaokang ^{[1
]}

Li, Hao ^{[1
]}

Wu, Jiangwei ^{[1
]}

Liu, Xiangmin ^{[1
]}

Chen, Yuping ^{[1
]}

Chen, Xianfeng ^{[1
,2
,3
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Phys & Astron, State Key Lab Adv Opt Commun Syst & Networks, 800 Dongchuan Rd, Shanghai 200240, Peoples R China

[2] Shanghai Res Ctr Quantum Sci, Shanghai 201315, Peoples R China

[3] Shandong Normal Univ, Collaborat Innovat Ctr Light Manipulat & Applicat, Jinan 250358, Peoples R China

来源：

OPTICS LETTERS | 2023年 / 48卷 / 01期

基金：

中国国家自然科学基金;

关键词：

NANOCAVITY; DESIGN;

D O I：

10.1364/OL.477895

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this Letter, by cascading several bichromatic photonic crystals we demonstrate that the quality factor can be much larger compared with that in an isolated cavity without increasing the total size of a device. We take a lithium niobate photonic crystal as an example to illustrate that the simulated quality factor of the cascaded cavity can reach 10(5) with a 70 degrees slant angle, which is an order of magnitude larger than that in an isolated cavity. The device can be fabricated easily by current etching techniques for lithium niobate. We have fabricated the proposed device experimentally including holes with similar to 70 degrees slant angle. This work is expected to provide guidance to the design of photonic crystal cavities with high quality factor. (c) 2022 Optica Publishing Group

引用

页码：113 / 116

页数：4

共 32 条

[1] High-Performance Temperature Sensor Based on One-dimensional Pyroelectric Photonic Crystals Comprising Tamm/Fano Resonances [J].