光学学报, 2021, 41 (1): 0123001, 网络出版: 2021-02-23
人工光学微纳结构中的连续体束缚态:原理、发展及应用 
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Bound States of Continuum in Optical Artificial Micro-Nanostructures: Fundamentals, Developments and Applications
图 & 表
图 1. 不同光学体系中BICs的模式耦合与高品质因数的应用示意图
Fig. 1. Schematic of BICs mode coupling and high quality factor application in different optical systems
图 2. 光学BICs的物理机制。(a)周期性光子结构[35];(b)时域耦合模理论;(c)多极矩展开法[37]
Fig. 2. Physical mechanism of optical BICs. (a) Periodic photon structure[35]; (b) temporal coupled mode theory; (c) multipole deconposition method[37]
图 3. 光栅及光子晶体中的BICs。(a)金属-光子晶体结构(上)和光子模式的能级(下)[67];(b)光子晶体薄板中共振态的远场分解[68];(c)偏振奇点的BICs[69];(d)偏振奇点及其品质因数的实验观测[69];(e)多个BICs相干引起的超高品质因数导模共振态[72]
Fig. 3. Gratings and BICs in photonic slabs. (a) Metal-photonic crystal structure (top) and photonic mode energy levels (bottom)[67]; (b) far fields decomposition of resonances in photonics slabs[68]; (c) BICs of polarization singularity[68]; (d) experimental observation of polarization singularities and quality factor measurements[
图 4. 超构表面及单个微纳结构中的BICs。(a)面内非C2对称结构单元的太赫兹超构表面[108];(b)全电介质超构表面中垂直方向的对称性破缺[110];(c)太赫兹超构表面结构示意图及扫描结构参数的透射谱伪彩图[114];(d)单个高折射率电介质微纳结构中的模式强耦合[119];(e)单个微纳结构散射谱中的能级[120];(f)直立开口环金属超构表面中准BICs共振态及其场增强曲线[124Fig. 4. Metasurfaces and BICs in single subwavelength resonators. (a) Terahertz superstructure surface of intra-planar non C2-symmetric structural element[107]; (b) symmetry breaking in vertical direction on all dielectric superstructure surfaces[109]; (c) schematic of terahertz superstructure surface and pseudo-color diagram of transmission spectrum of scanned structural parameters[
Fig. 4. Metasurfaces and BICs in single subwavelength resonators. (a) Terahertz superstructure surface of intra-planar non C2-symmetric structural element[107]; (b) symmetry breaking in vertical direction on all dielectric superstructure surfaces[109]; (c) schematic of terahertz superstructure surface and pseudo-color diagram of transmission spectrum of scanned structural parameters[
图 5. 光学BICs的应用。(a)电介质光栅结构中准BICs的电磁场分布[129];(b)非对称超构表面中增强高次谐波[106];(c)单个微纳结构中非线性效应增强[123];(d)基于BICs的激光产生[131];(e)基于BICs模式的片上高维通信[138];(f)基于高光谱成像的生物分子探测[143]
Fig. 5. Application of optical BICs. (a) Field distributions of quasi-BICs in dielectric grating structure[129]; (b) enhanced harmonic generation with asymmetric nonlinear metasurfaces[106]; (c) enhancement of nonlinear effect in single nanostructures[123]; (d) laser genection based on BICs[131]; (e) hi
柴若衡, 刘文玮, 程化, 田建国, 陈树琪. 人工光学微纳结构中的连续体束缚态:原理、发展及应用[J]. 光学学报, 2021, 41(1): 0123001. Ruoheng Chai, Wenwei Liu, Hua Cheng, Jianguo Tian, Shuqi Chen. Bound States of Continuum in Optical Artificial Micro-Nanostructures: Fundamentals, Developments and Applications[J]. Acta Optica Sinica, 2021, 41(1): 0123001.
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