Guo, Hong joined Peking University in 2003 as a full professor with School of Electronics. He obtained his B. E. from National University of Defense Technology in 1991, and Ph.D. from Shanghai Institute of Optics and Fine Mechanics, CAS in 1995. His research interests cover the topics of Quantum Optics, Quantum Precision Measurement, Quantum Information Science and Technologies, and related, including: Quantum Coherence and Interference, Quantum Open System and Entanglement Dynamics, Quantum Sensor (Atomic Magnetometer), Quantum Cryptography (Quantum Key Distribution), and Light Propagation.

Prof. Guo has published more than 300 SCI papers in peer-reviewed journals, such as OSA, APS, AIP, IEEE, IOP journals, such as Optics Letters, Optics Express, Physical Review A, E, Applied Physics Letters, IEEE Photonics Technology Letters, Journal of Physics B, etc., which have been cited by others for around 40,000 times. He is the fellow of the Institute of Physics (UK) and fellow of the Chinese Institute of Electronics, and now serves as chief scientist of Quantum Information Technology Division for National Key Research and Development program, chair of Commission D (Electronics and Photonics) of URSI China, vice chair of the Quantum Cryptography Committee of the Chinese Association for Cryptologic Research, and vice chair of the Quantum Electronics and Optoelectronics Committee of the Chinese Institute of Electronics. He was awarded the National Science Foundation for Distinguished Young Scholars (2012) and National Outstanding Postdoctoral Award of China (2005).

Prof. Guo chairs more than 10 important research projects, including the key projects of NSFC and NHTRD Program. His research achievements are as follows:

1. Realized high precision (sub-pT/Hz^1/2@1Hz) quantum magnetometers based on laser pumped atomic ensembles, which now serves as facility of China station of the Global Network of Optical Magnetometers for Exotic Research (GNOME).

2. Realized various kinds of atomic optical filters, including wavelengths from ultraviolet (387nm) to optical communication band (1529nm), with the linewidth less than 0.01nm.

3. Proposed the passive monitoring method and realized the first experimental demonstration of untrusted source monitoring in quantum key distribution.

4. Proposed the photon-number-counting method and, together with von Neumann post-processing, realized the bias-free quantum random number generation. Further, realized the state-of-the-art the longest (14Gbit) and fastest (1.6Tbps), respectively, truly random number generation.

5. Proposed the differential geometric method for light propagation and derived the generalized eikonal equation which includes the diffraction effects in geometric optics, and further, generalized the definition and kinds of Diffraction-free beams.