3 papers
physics.optics2025
Breaking Kirchhoff's Law in Nonlinear Thermal Emission
R. Ma, Y. Yu, Y. Sun +2
Thermal radiation is strictly governed by Kirchhoff s law to reach thermal equilibrium. The violation of Kirchhoff s law decouples nonreciprocally the equity between absorptivity a…
physics.optics2025
Erbium-doped lithium niobate waveguide amplifier enhanced by an inverse-designed on-chip reflector
Zhiwei Wei, Jiangwei Wu, Chengyu Chen +4
This study presents a 3.6-cm-long erbium-doped lithium niobate waveguide amplifier enhanced by an inverse-designed on-chip reflector. Integrating the reflector at the waveguide end…
physics.optics2024
Dual-color Coherent Perfect Absorber
Boyi Xue, Jintian Lin, Jiankun Hou +6
Perfect absorption of light critically affects light-matter interaction for various applications. Coherent perfect absorbers (CPA) gain the unique capability of controlling light w…