期刊論文
| 學年 | 113 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2025-07-24 |
| 作品名稱 | Anisotropy of Second-Harmonic Generation in SnSe Flakes with Ferroelectric Stacking |
| 作品名稱（其他語言） | |
| 著者 | Li-Tien Huang; Redhwan Moqbel; Chi Chen; Ming-Hao Lee; Chi-Cheng Lee; Nannan Mao; Tianyi Zhang; Yunyue Zhu; Jing Kong; Kung-Hsuan Lin |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Advanced Photonics Research 6, 2500033 |
| 摘要 | The second-harmonic generation (SHG) susceptibilities of few-layer SnSe with ferroelectric stacking are investigated using both experimental and theoretical approaches. Theoretical calculations predict a maximum bulk SHG susceptibility of 2444 pm V−1 at 1.2 eV, which is three orders of magnitude larger than that of typical nonlinear crystals. Experimentally, a maximum value of 1424 pm V−1 at 1.19 eV in close agreement with the theoretical prediction is measured. The anisotropic SHG patterns observed experimentally align with theoretical predictions based on the material's point group symmetry. The photon-energy dependence of SHG patterns is also measured within the range of 1.19 to 1.55 eV to explore the relative strengths of various SHG susceptibilities. Notably, the measured is significantly larger than the theoretical value of bulk AC-SnSe, likely due to the strain effects and the mixing of ferroelectric and antiferroelectric stacking configurations in the practical SnSe few-layer samples. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 2699-9293 |
| 期刊性質 | 國外 |
| 收錄於 | ESCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | DEU |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/128114 ) |