Cheng FENG, Jian LIU, Yijun ZHANG, Yunsheng QIAN. Optical properties and quantum efficiency of multilayer complicated GaAs-based photocathode[J]. Optics and Precision Engineering, 2023, 31(17): 2483
- Optics and Precision Engineering
- Vol. 31, Issue 17, 2483 (2023)
Fig. 1. Structure of GaAs-based photocathode samples
Fig. 2. Cross-sectional SEM images
Fig. 3. Reflectivity curves of GaAs-based photocathode samples
Fig. 4. Measured quantum efficiency curves of GaAs cathode samples after Cs/O activation
Fig. 5. Structure of complicated multi-layer GaAs-based photocathodes
Fig. 6. Optical properties and quantum efficiency curves with changing thicknesses of GaAs emission layer in multi-layer GaAs-based photocathodes
Fig. 7. Optical properties and quantum efficiency curves with changing thicknesses of Alx Ga1-x As buffer layer in multi-layer GaAs-based photocathodes
Fig. 8. Optical properties and quantum efficiency curves with changing Al proportions in multi-layer GaAs-based photocathodes
Fig. 9. Fitted curves of quantum efficiency
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