A5037100210- Optical Coatings and Gratings
- Surface Roughness and Optical Measurements
- Photonic and Optical Devices
- Optical Polarization and Ellipsometry
- Fluid Dynamics and Thin Films
- Semiconductor materials and devices
- Thin-Film Transistor Technologies
- Acoustic Wave Resonator Technologies
Zhejiang University
2022-2023
State Key Laboratory of Modern Optical Instruments
2022-2023
Conventional benchtop spectrometers with bulky dispersive optics and long optical path lengths display limitations where the significance of miniaturization, real-time detection, low cost transcend ultrafine resolution wide spectral range. Here, we demonstrate a miniaturized all-dielectric ultracompact film spectrometer based on deep learning working in single-shot mode. The scheme employs 16 encoders simple five-layer stacks merely thickness intermediate high-index modulation layer is...
Ultralow refractive index films can reduce the reflection loss of light propagating between different media, which is crucial for enhancing performance and efficiency optical components. This work presents an approach to production ultralow thin based on magnetron cosputtering subsequent selective chemical etching, where a nanoporous silicon dioxide film with variable fabricated by sacrificial method forming random holes size less than 100 nm. The effective be adjusted from 1.1 1.46 simply...
Wide-angle and broadband antireflection (AR) coating is of the essence in modern optical systems many fields, which has a great influence on stray light imaging quality. A simple convenient manufacturing method proposed to address this issue based composite combining nano-tapered Al2O3•xH2O (AH) structure high-low index thin film stack. The properties AH at various thickness are first studied modeled optics by several homogeneous sub-layers with graded equivalent index. designed AR coatings...