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physics.optics2024
Design and experimental demonstration of photonic-crystal lasers with multijunction active layers
Shumpei Katsuno, Masahiro Yoshida, Takuya Inoue +4
We introduce multijunction active layers, featuring a stack of alternating active layers and tunnel junctions, to PCSELs to increase their slope efficiency, which is vital for vari…
physics.optics2024
Observation of Berry curvature in non-Hermitian system from far-field radiation
Xuefan Yin, Ye Chen, Xiaoyu Zhang +3
Berry curvature that describes local geometrical properties of energy bands can elucidate many fascinating phenomena in solid-state, photonic, and phononic systems, given its conne…
physics.optics2023★ 1 cited
Origins and conservation of topological polarization defects in resonant photonic-crystal diffraction
Xuefan Yin, Takuya Inoue, Chao Peng +1
We present a continuative definition of topological charge to depict the polarization defects on any resonant diffraction orders in photonic crystal slab regardless they are radiat…