研究目的
Investigating the optical properties and photoluminescence enhancement of Ce: LSO crystals irradiated with 6.0 MeV C ions.
研究成果
6.0 MeV C ion irradiation at fluences of 1.0 × 1015 and 2.0 × 1015 ions/cm2 forms optical waveguide structures in Ce: LSO crystals with minimal influence on visible and near-infrared bands. The photoluminescence intensity is significantly enhanced, indicating potential applications in imaging and detection.
研究不足
The study is limited to the effects of 6.0 MeV C ion irradiation at specific fluences on Ce: LSO crystals. The influence of other ion types or energies is not explored.
1：Experimental Design and Method Selection:
Ce: LSO crystals were irradiated with
2：0 MeV C3+ ions at fluences of 0 × 1015 and 0 × 1015 ions/cmThe optical properties were studied using prism coupling and end-face coupling methods. Structural properties were analyzed by XRD. Sample Selection and Data Sources:
Optically polished z-cut Ce: LSO crystals of trigonal system with dimensions of
3：0 × 0 × 5 mm3 were used. List of Experimental Equipment and Materials:
A 2 ×
4：7 MV tandem accelerator at Peking University for ion irradiation, metallographic microscope (Axio Imager, Carl Zeiss) for cross-section detection, prism coupler for waveguide performance measurement, Bruker D8 Advance diffractometer for XRD, Jasco U570 spectrophotometer for absorption spectra, and Jobin-Yvon iHR320 monocromator for PL spectra. Experimental Procedures and Operational Workflow:
C-ion beam was deflected over the crystal surface at 7° off-surface normal to minimize channeling effects. The electronic and nuclear stopping powers were simulated by SRIM
5：Data Analysis Methods:
20 The refractive index profiles were reconstructed through RCM code, and near-field intensity profiles were simulated by FD-BPM.
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