牛智川，男，博士，研究员，博士生导师。
曾留学德国波尔德鲁德研究所、美国南加州大学。“国家杰出青年科学基金”获得者，国家重点研发计划量子专项首席科学家，国家自然科学基金重大项目主持人，国家重大科学研究计划纳米专项首席科学家。
取得的重要科研成果和获得的奖励情况：
发现InGa)As/GaAs环状量子结构液滴外延现象，发展In(Ga)As/GaAs量子点密度调控和波长拓展技术；研制成功纳米线量子点耦合微柱微腔量子点耦合结构的高速率和全同性单光子发射器件，在单光子量子存储和非线性转换纠缠光子发射器件中得到验证；研制出光通信波段InAs量子点激光器实现了高T0超低阈值室温连续激射；研制出InGaNAsSb/GaAs异变量子阱激光器激射波长突破1.59微米；开拓锑化物窄带隙半导体材料外延和光电器件研究方向，率先研制成功1.8-3.5微米波段锑化物量子阱室温连续激光器、DFB单模激光器、FP腔激光器单管和巴条激光器；研发成功锑化物超晶格大尺寸外延材料，成功应用于2-20微米波段新一代中短波、中长波单色、双色和高温焦平面技术。在Nature，Adv. Materials, Phys. Rev. Lett., Nano Lett., Nanoscale, Appl. Phys. Lett.等发表SCI论文300余篇受到国际同行广泛关注被他引3000余次，研究成果多次被III-Vs Review，Compound Semiconductor，Technique Insights, Laser Focus World等专题报道。曾获北京市自然科学技术二等奖、中国电子学会自然科学一等、中科院优秀研究生导师奖等。培养的硕士和博士研究生有多人次获得中科院院长优秀奖和冠名奖、中科院优秀毕业生奖、国家优秀留学生奖等。
主要研究领域或方向：
新型半导体光电材料与量子器件：GaAs、GaSb基低维材料分子束外延生长、受限光电子体系量子物理效应、高性能光电器件与量子器件制备。
联系方式：
zcniu@semi.ac.cn；01082304268
在研/完成项目：
1. 国家重点研发计划量子项目，半导体复合量子结构的量子输运机理及量子器件研究
2. 国家自然科学基金重大项目，锑化物低维结构中红外激光器基础理论与关键技术
3. 中国科学院科学仪器项目，半导体量子光源系统
4. 国家重大科学研究计划纳米项目，分立量子点纳米可控高效发光器件机理及制备基础研究
5. 国家自然科学基金重大计划重点项目，微腔与单量子点耦合单光子发射相干探测及器件制备
代表性论文或著作：
1. Cheng-Ao Yang, Sheng-Wen Xie, Yi Zhang, Jin-Ming Shang, Shu-Shan Huang,1Ye Yuan, Fu-Hui Shao, Yu Zhang, Ying-Qiang Xu, and Zhi-Chuan Niu*，High-power, high-spectral-purity GaSb based laterally coupled distributed feedback lasers with metal gratings emitting at 2 μm，Appl. Phys. Lett. 114, 021102(2019).
2. X. Li, H. Wang, Z. L. Qiao, X. Guo, W. J. Wang, G. K. NG, Y. Zhang, Y. Q. Xu, Z. C. Niu*, C. Z. Tong, and C. Y. Liu，Investigation of regime switching from mode locking to Q-switching in a 2 µm InGaSb/AlGaAsSb quantum well laser，Optics Express, 26, 8289(2018).
3. Ying Yu, Guo-Wei Zha, Xiangjun Shang, Shuang Yang, Baoquan Sun, Hai-Qiao Ni and Zhi-Chuan Niu*, “Self-assembled semiconductor quantum dots decorating the facets of GaAs nanowire for single photon emission”, National Science Review, 4, 196(2017)
4. Dongwei Jiang, Xi Han, Hongyue Hao, Yaoyao Sun, Zhi Jiang, Yuexi Lv,Chunyan Guo, Guowei Wang, Yingqiang Xu, Yang Yu, and Zhichuan Niu*，“Significantly extended cutoff wavelength of very long-wave infrared detectors based on InAs/GaSb/InSb/GaSb superlattices”, Appl. Phys. Lett., 111, 161101(2017).
5. Ying Yu, Yu-Ming Wei, Jing Wang, Jia-Hua Li, Xiang-Jun Shang, Hai-Qiao Ni, Zhi-Chuan Niu,* Xue-Hua Wang and Si-Yuan Yua, “Large optical Stark shifts in single quantum dots coupled to core–shell GaAs/AlGaAs nanowires”, Nanoscale, 9, 5483(2017).
6. J.-S. Tang, Z.-Q. Zhou, Y.-T. Wang, Y.-L. Li, X. Liu, Y.-L. Hua, Y. Zou, S. Wang, D.-Y. He, G. Chen, Y.-N. Sun, Y. Yu, M.-F. Li, G.-W. Zha, H.-Q. Ni, Z.-C. Niu*, C.-F. Li, G.-C. Guo, “Storage of multiple single-photon pulses emitted from a quantum dot in a solid-state quantum memory”, Nature Communications, 6, 8652(2015).
7. Ying Yu, Xiu-Ming Dou,Bin Wei,Guo-Wei Zha,Li Wang,Xiang-Jun Shang, Dan Su, Jian-Xing Xu, Hai-Yan Wang, Hai-Qiao Ni, Bao-Quan Sun, Yuan Ji, Xiao-Dong Han, Zhi-Chuan Niu*, “Self-assembled quantum dot structures in a hexagonal nanowire for quantum Photonics”, Advanced Materials, 26, 2710(2014)
8. Guowei Zha, Xiangjun Shang, Dan Su, Ying Yu, Bin Wei, Li Wang, Mifeng Li, Lijuan Wang, Jianxing Xu, Haiqiao Ni, Yuan Ji, Baoquan Sun and Zhichuan Niu*, “Self-assembly of single square quantum ring in gold-free GaAs nanowires”, Nanoscale, 6, 3190(2014)
9. Geng Chen, Yang Zou, Xiao-Ye Xu, Jian-Shun Tang, Yu-Long Li, Jin-Shi Xu, Yong-Jian Han, Chuan-Feng Li, Guang-Can Guo, Hai-Qiao Ni, Ying Yu, Mi-Feng Li, Guo-Wei Zha, Zhi-Chuan Niu, Yaron Kedem, “Experimental Test of the State Estimation-Reversal Tradeoff Relation in General Quantum Measurements”, Physical Review X 4, 021043(2014)
10. Ying Yu, Mi-Feng Li, Ji-Fang He,Yu-Ming He, Yu-Jia Wei, and Yu He, Guo-Wei Zha, Xiang-Jun Shang, Juan Wang, Li-Juan Wang, Guo-Wei Wang, Hai-Qiao Ni, Chao-Yang Lu, and Zhi-Chuan Niu*, “Single InAs quantum dot grown at the junction of branched gold-free GaAs nanowire”, Nano Letters, 13,1399(2013).