上海科技大学知识管理系统

Hyperuniform disordered solids (HUDS) waveguides, a type of emergingartificial photonic bandgap (PBG) devices, are demonstrated to possess large,complete, and isotropic PBGs, being promising for developing applications inoptoelectronics, nonlinear optics, and sensing. However, optical losses ofHUDS waveguides are usually limited by giant light scattering from theirregular distribution of HUDS cells. Herein, HUDS waveguide devices aredemonstrated with low optical losses and large PBGs by exploring amorphology-engineering and wall-network-regulation method of developingHUDS structures. The results show that the proposed device can achieve a3.0 dB transmittance improvement for a 36-μm-long silicon HUDSwaveguide. Based on the proposed HUDS structure, a waveguide-coupledHUDS-cladding nanocavity is also demonstrated with a quality factor of ≈70at 2.250 μm wavelengths and a theoretical refractive index sensitivity of446 nm RIU−1 . The study opens an avenue to develop intriguing HUDSwaveguide devices for on-chip applications.