3 papers
physics.optics2025
Merging the characteristics of an exceptional point and a quasi-bound state in the continuum in nanophotonic cavities
Xiao-Jing Du, Xi-Hua Guan, Yue You +3
In conventional eigenvalue analyses of non Hermitian two mode systems, mode coupling cannot produce the simultaneous occurrence of an exceptional point (EP) and a quasi bound state…
physics.optics2025
Quantum versus Classical Descriptions of Spontaneous Emission in Nanophotonic Cavities
Jian-Hua Liang, Yue You, Xi-Hua Guan +3
Here, we demonstrate that quantum and classical descriptions generally yield different results for the spontaneous emission in nanophotonic cavities. Starting from the quantized si…
physics.optics2024
Relations between near-field enhancements and Purcell factors in hybrid nanostructures of plasmonic antennas and dielectric cavities
Xu-Tao Tang, Lin Ma, Yue You +5
Strong near-field enhancements (NFEs) of nanophotonic structures are believed to be closely related to high Purcell factors (FP). Here, we theoretically show that the correlation i…