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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.optics2025
Subwavelength plasmonic antennas based on asymmetric split-ring-resonators for high near-field enhancements
Yue You, Xiao-Jing Du, Lin Ma +3
As for plasmonic antenna structures that generate localized near-field enhancement, the most effective current implementations are based on electric dipole resonance modes, but thi…