1. 2022.05——至今 副教授 天津大学 精密仪器与光电子工程学院
2. 2016.09——2021.06 博士后 美国卡耐基梅隆大学 电子与计算机工程学院
3. 2011.09——2016.06 博士 山东大学 物理学院
4. 2007.09——2011.06 学士 山东大学 物理学院

1. 集成光子芯片；
2. 非线性光学；
3. 微纳米加工光电子器件

承担科研项目：

1. 1. 声光相控阵中纵向光束偏转的研究，国家自然科学基金青年基金项目，2024.01-2026.12，在研，项目负责人；
2. 2. 混合集成声光调制器，天津大学自主创新基金，2023.01-2023.12，结题，项目负责人。

专利

已授权美国发明专利一项——Acousto-optic gyroscopes.

1. G. Piazza, M. Mahmoud, A. Mahmoud, L. Cai, M. Khan, T. Mukherjee, and J. Bain, Acousto-optic gyroscopes. 专利号：US 11,112,245 B2 授予日期：Sep.7, 2021

已发表SCI期刊和会议论文三十余篇，被引用600余次.

期刊论文：

1. 1. S. Li, X. Tong, L. Cai*, and L. Zhang*, “Integrated Hybrid Tweezer for Particle Trapping with Combined Optical and Acoustic Forces,” Appl. Sci. 13(19), 10673 (2023).
2. 2. H. Zhang, Q. Li, H. Zhu, L. Cai, and H. Hu*, “Second harmonic generation by quasi-phase matching in a lithium niobate thin film,” Opt. Mater. Express 12(6), 2252-2259 (2022).
3. 3. L. Cai, J. Li, R. Wang, and Q. Li*, “Octave-spanning microcomb generation in 4H SiC-on-insulator photonics platform,” Photonics Res. 10(4), 870-876 (2022). 4. Q. Li, H. Zhu, H. Zhang, L. Cai, and H. Hu*, “Phase modulators in hybrid silicon and lithium niobate thin films,” Opt. Mater. Express 12(4), 1314-1322 (2022).
4. 5. M. Khan*, A. Mahmoud, L. Cai, M. Mahmoud, T. Mukherjee, J. Bain, and G. Piazza, “Extraction of Elastooptic Coefficient of Thin-Film Arsenic Trisulfide Using a Mach-Zehnder Acoustooptic Modulator on Lithium Niobate,” J. Lightwave Technol. 38(7), 2053-2059 (2020).
5. 6. L. Cai*, A. Mahmoud, M. Khan, M. Mahmoud, T. Mukherjee, J. Bain, and G. Piazza, “Acousto-opitcal modulation of thin film lithium niobate waveguide devices,” Photonics Res. 7(9), 1003-1013 (2019).
6. 7. L. Cai*, and G. Piazza, “Low-loss chirped grating for vertical light coupling in lithium niobate on insulator,” J. Opt. 21(6), 065801 (2019).
7. 8. L. Cai*, A. Mahmoud, and G. Piazza, “Low-loss waveguides on Y-cut thin film lithium niobate: towards acousto-optic applications,” Opt. Express 27(7), 9794-9802 (2019).
8. 9. M. Mahmoud*, A. Mahmoud, L. Cai, M. Khan, T. Mukherjee, J. Bain, and G. Piazza, “Novel on chip rotation detection based on the acousto-optic effect in surface acoustic wave gyroscopes,” Opt. Express 26(19), 25060-25075 (2018).
9. 10. L. Cai, A. Gorbach, Y. Wang, H. Hu, and W. Ding*, "Highly efficient broadband second harmonic generation mediated by mode hybridization and nonlinearity patterning in compact fiber-integrated lithium niobate nano-waveguides," Sci. Rep. 8, 12478 (2018).
10. 11. M. Mahmoud*, L. Cai, C. Bottenfield, and G. Piazza, "Lithium Niobate Electro-Optic Racetrack Modulator Etched in Y-Cut LNOI Platform," IEEE Photonics J 10(1), 6600410 (2018).
11. 12. Y. Wang, Z. Chen, L. Cai, Y. Jiang, H. Zhu, and H. Hu*, “Amorphous silicon-lithium niobate thin film strip-loaded waveguides,” Opt. Mater. Express 7(11), 4018-4028 (2017).
12. 13. S. Zhang*, L. Cai, Y. Jiang, and Y. Jiao, "High extinction ratio bandgap of photonic crystals in LNOI wafer," Opt. Mater. 64, 203-207 (2017).
13. 14. L. Cai, Y. Wang, and H. Hu*, “Efficient second harmonic generation in χ(2) profile reconfigured lithium niobate thin film,” Opt. Commun. 387, 405-408 (2017).
14. 15. L. Cai, Y. Kang, and H. Hu*, “Electric-optical property of the proton exchanged phase modulator in single-crystal lithium niobate thin film,” Opt. Express 24(5), 4640-4647 (2016).
15. 16. L. Cai*, S. Zhang, and H. Hu, “A compact photonic crystal micro-cavity on a single-mode lithium niobate photonic wire,” J. Opt. 18, 035801 (2016).
16. 17. L. Cai, R. Kong, Y. Wang, and H. Hu*, “Channel waveguides and Y-junctions in x-cut single-crystal lithium niobate thin film,” Opt. Express 23(22), 29211-29221 (2015).
17. 18. S. Li, L. Cai, Y. Wang, Y. Jiang, and H. Hu*, “Waveguides consisting of single-crystal lithium niobate thin film and oxidized titanium stripe,” Opt. Express 23(19), 24212-24219 (2015).
18. 19. H. Han, L. Cai, B. Xiang, Y. Jiang, and H. Hu*, “Lithium-rich vapor transport equilibration in single-crystal lithium niobate thin film at low temperature,” Opt. Mater. Express 5(11), 2635-2641 (2015).
19. 20. L. Cai*, Y. Wang, and H. Hu, “Low loss waveguides in single crystal lithium niobate thin film,” Opt. Lett. 40(13), 3013-3016 (2015).
20. 21. H. Han*, L. Cai, and H. Hu, “Optical and structural properties of single-crystal lithium niobate thin film,” Opt. Mater. 42, 47-51 (2015).
21. 22. L. Cai*, S. Li, H. Han, and H. Hu, “Waveguides in single-crystal lithium niobate thin film by proton exchange,” Opt. Express 23(2), 1240-1248 (2015).
22. 23. L. Cai*, H. Han, S. Zhang, H. Hu, and K. M. Wang, ‘‘Photonic crystal slab fabricated on the platform of lithium niobate-on-insulator,’’ Opt. Lett. 39(7), 2094-2096 (2014).
23. 24. S. Zhang*, L. Cai, Q. Liu, X. Liu, and X. Ming, "Optical waveguide in stoichiometric lithium niobate by multi-low-energy helium ion implantation," Nucl. Instrum. Methods Phys. Res. B 307, 438-441 (2012).

会议论文：

1. 1. Y. Li, L. Cai*, and L. Zhang*, “Highly Efficient Second-Harmonic Generation in a Double-Layer Thin-Film Lithium Niobate Waveguide,” Optical Fiber Communications Conference and Exhibition, (OFC, 2024).
2. 2. Y. Li, L. Cai*, and L. Zhang*, “Exceptionally Efficient Second-Harmonic Generation in a Double-Layer Thin-Film Lithium Niobate Waveguide,” Asia Communications and Photonics Conference and Exhibition, (ACP, 2023).
3. 3. L. Cai*, and G. Piazza, “Low-loss Waveguides in Y-cut Thin Film Lithium Niobate for Acousto-Optic Applications,” Conference on Lasers and Electro-Optics, (CLEO, 2019).
4. 4. M. Khan*, A. Mahmoud, L. Cai, M. Mahmoud, T. Mukherjee, J. A. Bain, and G. Piazza, “Acousto-Optic Modulator based on the Integration of Arsenic Trisulfide Photonic Components with Lithium Niobate Surface Acoustic Waves,” Conference on Lasers and Electro-Optics, (CLEO, 2019).
5. 5. A. Mahmoud*, L. Cai, J. A. Bain, T. Mukherjee, and G. Piazza, "Acousto-Optic Gyroscope with Improved Sensitivity and 100 second Stability in a Small Form Factor," 2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL, 2019).
6. 6. A. Mahmoud#, M. Mahmoud#, L. Cai#, M. Khan, J. A. Bain, T. Mukherjee, and G. Piazza, "Acousto-optic gyroscope," IEEE Micro Electro Mechanical Systems (MEMS, 2018).
7. 7. M. Mahmoud*, L. Cai, A. Mahmoud, T. Mukherjee, and G. Piazza, "Electro-optically controlled acousto-optic racetrack modulator etched in LNOI platform," IEEE Micro Electro Mechanical Systems (MEMS, 2018).
8. 8. M. Mahmoud*, C. Bottenfield, L. Cai, and G. Piazza, “Fully integrated lithium niobate electro-optic modulator based on asymmetric Mach-Zehnder interferometer etched in LNOI platform”, IEEE Photonics Conference (IPC, 2017).
9. 9. L. Cai, H. Hu, A. Gorbach, Y. Wang, and W. Ding*, “Highly-efficient Broadband Second Harmonic Generation in Compact Fiber-integrated Thin-film LiNbO3 Nano-waveguides,” Conference on Lasers and Electro-Optics, (CLEO, 2017).
10. 10. L. Cai, H. Han, S. Li, and H. Hu*, “Integrated Optics on Single-Crystal Lithium Niobate Thin Film: Some Recent Progress,” 18th International Conference on Transparent Optical Networks (ICTON, 2016).
11. 11. W. Ding*, A. Gorbach, L. Cai, Y. Yu, and H. Hu, “Microfiber-lithium niobate on insulator hybrid waveguides for efficient and reconfigurable second-order optical nonlinearity on a chip,” Conference on Lasers and Electro-Optics, (CLEO, 2016).
12. 12. Z. Gong, W. Ji, R. Yin*, H. Hu, L. Cai, X. Li, C. Niu, J. Li, and J. Wang, “Polarization beam splitter based on lithium niobate thin film,” 15th International Conference on Optical Communications and Networks (ICOCN, 2016).

1. 2020年英国物理学会（IOP）杰出审稿人
2. 2019-2021年连续三年获美国光学学会（OSA）审稿贡献奖
3. 2016年被评为山东大学年度创新创业活动先进个人
4. 2015年获光华奖学金
5. Nature Communications, Photonics Research, Optics Letters, Optics Express等国际著名期刊的审稿人
6. 美国光学学会 (Optical Society of America) 会员
7. 国际光学工程学会 (International Society for Optical Engineering) 会员