Address：

Rm.2-108, Tsinghua-Rohm Electronic Engineering Hall

Tsinghua University, Beiiing 100084, China

Tel:+86-10-62783389

Fax:+86-10-62797073-808

E-mail：litc@mail.tsinghua.edu.cn

Education：

2018-2023 Ph.D.in Electronic Engineering, Tsinghua University

2014-2018 B.S.in Electronic Engineering, Tsinghua University

Working Experience：

2023-Now：Postdoc, Dept, of Electronic Engineering, Tsinghua University

Professional Experience：

Dr. Li has been focusing on the field of free-electron radiation devices and terahertz devices. He experimentally realized a hyperbolic metamaterial based on 2D materials such as graphene. He experimentally observed the terahertz threshold-less Cherenkov radiation based on hyperbolic metamaterial. He also developed the terahertz Cherenkov radiation chip, which is the first free-electron terahertz source combining the on-chip integration and wide-range tunability. The chip has tunable range comparable to that of the large-scale terahertz source based on accelerators, while its size is smaller by three to five orders of magnitude.

Publications：

[1] Tianchang Li, Fang Liu, Yudi Chen, Xiaotong Xiong, Kaiyu Cui, Xue Feng, Wei Zhang and Yidong Huang. “On-chip Cherenkov radiation tuning in 3.2-14 THz”, Nature Communications, 16, 7921, 2025.

[2] Tianchang Li, Fang Liu and Yidong Huang. “Terahertz Radiation Generated from Graphene Hyperbolic Metamaterial”, The 28th Optoelectronics and Communications Conference (OECC) 2023.

Patents:

[1] Fang Liu，Tianchang Li，Jinyu Li，Yidong Huang，Kaiyu Cui，Xue Feng，Wei Zhang. “Hyperbolic-metamaterial-based on-chip terahertz souce and its fabrication method”, ZL202011411950.5

[2] Fang Liu，Tianchang Li，Kaiyu Cui，Xue Feng，Wei Zhang，Yidong Huang. “Preparation method of surface plasmon thin films and method for fabricating multilayer metamaterials”， ZL202211099082.0

[3] Fang Liu，Tianchang Li，Yidong Huang，Xue Feng，Kaiyu Cui，Wei Zhang.“Preparation method of hyperbolic metametarials”，ZL202210704770.9

[4] Fang Liu，Tianchang Li，Kaiyu Cui，Xue Feng，Wei Zhang，Yidong Huang.“Infrared Cherenkov radiation source and free-electron light source based on natural hyperbolic materials”，ZL202210051327.6

[5] Fang Liu，Yuechai Lin，Tianchang Li，Yidong Huang，Xue Feng，Kaiyu Cui，Wei Zhang.“Coherent Smith-Purcell radiation device and method for generating coherent THz radiation signals”， ZL201910603751.5

Fang Liu，Hanqi Feng，Tianchang Li，Xue Feng，Wei Zhang，Kaiyu Cui，Yidong Huang. “Narrow-linewidth millimeter-wave and terahertz spectroscopy measurement device and method based on Fabry-Pérot interferometer”，202411905959.X