Tianjin University (TJU) has recently made a breakthrough in the research of terahertz waves in graphene modulation. This achievement is published in Nature Communications, an internationally renowned academic journal that publishes high-quality research. The paper “Active graphene - silicon hybrid diode for terahertz waves” (Vol. 6, 7082) reported the pioneering work of conducting active modulation for graphene - silicon composite structure through the use of photoelectric parallel mechanism.

 

As a typical two-dimensional material, graphene boasts a single atomic structure and excellent optical, electrical, and mechanical properties, showing many novel physical properties attractive to physicists, engineers and material scientists. Because of its external regulated conductivity and the tunable interband and intraband width, graphene has many potential applications in the field of terahertz.  Graphene also holds great promise for photonic and optoelectronic device applications.

 

Professor Zhang Weili, from the School of Precision Instruments and Optoelectronics Engineering of TJU and Terahertz Research Center, and his/her team have committed to the research of terahertz photonics and its functional device, and has achieved many original and international research in such fields as terahertz wave generation and detection, and artificial electromagnetic medium.
This work is supported by the Ministry of Science and Technology First Batch of Major Scientific Instruments Special Project, 973 Program, the Ministry of Education Innovation Program, Key Project of the National Natural Science Foundation, the Key Project of International Cooperation and Terahertz Collaborative Innovation Center.