物理学进展2026，Vol.46Issue(4)：165-173,9.DOI:10.13725/j.cnki.pip.2026.04.001
多晶相BN范德瓦耳斯异质结构中的双曲声子极化激元调控
Tailoring hyperbolic phonon polaritons in van der Waals heterostructures comprising multiphase boron nitride
王开元 1吕昕 2马国龙 2文露 2李志强 2王雷1
作者信息
- 1. 南京大学物理学院,南京 210093
- 2. 四川大学物理学院,成都 610064
- 折叠
摘要
Abstract
Phonon polaritons are hybrid quasiparticles arising from the coupling between infrared photons and lattice vibrations,enabling strong subwavelength confinement of electro-magnetic fields.This unique property makes them highly promising for nanoscale manipulation of infrared light and enhanced light-matter interactions.In this work,we theoretically inves-tigate hyperbolic phonon polariton in various boron nitride(BN)systems.Van der Waals het-erostructures are constructed by combining different BN materials,including h10BN,h11BN,pyrolytic boron nitride,and wurtzite boron nitride,and further integrated with α-MoO3.We systematically analyze the effects of material composition,stacking sequence,and layer thick-ness on polariton dispersion,interlayer coupling,and interfacial hybridization.The influence of isotopic mass variation,crystal disorder-induced damping,and phase-dependent dielec-tric responses is first examined through intrinsic dispersion comparisons.Our results reveal that multilayer BN heterostructures enable tunable mode hybridization,leading to disper-sion reconstruction,including branch rearrangement and spectral redistribution.When cou-pled with α-MoO3,the system exhibits multiple dispersion bandgaps and low group-velocity branches under specific conditions,arising from strong multimode coupling.These findings demonstrate that material selection,stacking configuration,and thickness engineering provide versatile degrees of freedom for tailoring hyperbolic phonon polaritons,offering valuable theo-retical guidance for infrared polariton engineering in complex van der Waals heterostructures.关键词
声子极化激元/同位素氮化硼/范德瓦尔斯异质结构/负折射/模式杂化/慢光Key words
phonon polaritons/isotopic boron nitride/van der Waals heterostructures/neg-ative refraction/mode hybridization/slow light分类
数理科学引用本文复制引用
王开元,吕昕,马国龙,文露,李志强,王雷..多晶相BN范德瓦耳斯异质结构中的双曲声子极化激元调控[J].物理学进展,2026,46(4):165-173,9.
