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physics.optics2025
Higher-order exceptional points unveiled by nilpotence and mathematical induction
Kenta Takata, Adam Mock, Masaya Notomi +1
Non-Hermitian systems can have peculiar degeneracies of eigenstates called exceptional points (EPs). An EP of degenerate states is said to have order , and higher-order EPs…
physics.optics2025
On-chip room-temperature CW lasing from a III-V nanowire integrated with a Si photonic crystal platform
Masato Takiguchi, Takuro Fujii, Hisashi Sumikura +3
We report the demonstration of continuous-wave (CW) lasing at room temperature from a III-V semiconductor nanowire integrated into a Si photonic crystal (PhC) cavity. Conventional…