AI 中文总结
该研究推导双振子单端口时域耦合模理论，结合自洽薛定谔-泊松计算，实现子带间极化激元超表面的电调谐，通过相位分辨远场准确识别模态参数，复振幅均方根误差达0.0256至0.0275，无需近场即可表征偏置分辨光谱。
AI 中文摘要
子带间极化激元超表面的电调谐需要在量子限制斯塔克效应（QCSE）修正的跃迁与可测量光学散射之间建立场一致的联系。我们推导了一种双振子、单端口的时域耦合模理论（TCMT），并在21个电场下还原了金属衬底InGaAs/InAlAs超表面的复杂远场反射光谱。自洽的薛定谔-泊松计算确定了子带间能量和振子强度，而一次零场复校准确定了共享的光子参数和全局相位延迟基线；仅有效耦合仍依赖于电场。100次随机初始化均收敛到相同的零场参数集。仅反射率控制能更紧密地拟合强度，但会产生偏移的模态参数和两倍以上的复振幅误差，这明确了为何需要相位分辨远场来识别模态参数和离轴反射零点拓扑。该约束模型给出的复振幅均方根误差值为0.0256至0.0275，并将内部极化激元极点与外部反射零点分离。QCSE驱动两个分支相关零点沿相反方向穿过实能轴，在与直接全波实轴零点交叉检查相同的电场区间内产生分支选择性临界耦合跃迁。所得框架将偏置分辨远场光谱转换为可识别的TCMT描述，无需近场可观测量。
英文摘要
Electrical tuning of intersubband-polaritonic metasurfaces cannot be fully identified from reflectance alone because intensity obscures the complex pole--zero dynamics governing critical coupling. We establish a field-consistent multiscale analysis that connects self-consistent Schrödinger--Poisson quantum states, complex rigorous coupled-wave spectra, and constrained one-port temporal coupled-mode theory across 21 electric fields. A single zero-field complex calibration fixes the shared photonic and phase-delay baseline, after which the effective coupling is the only field-dependent fitted parameter. The model reproduces the full-wave spectra with a complex-amplitude RMSE of 0.0255--0.0288 and is independently cross-checked through microscopic residue and overlap calculations. Complex poles describe internal polariton hybridization, whereas reflection zeros expose the external radiative--dissipative balance. The quantum-confined Stark effect drives the lower- and upper-polariton zeros through the real-energy axis in opposite directions, yielding two branch-resolved critical-coupling transitions that agree with direct full-wave cross-checks.
CommentsMain text with Supplemental Material; 9 figures and 6 tables in total
