Dr. Liu Hongjun 

Professor, Deputy Director of State Key Laboratory of Transient Optics and Photonics
Xi'an Institute of Optics and Precision Mechanics (XIOPM) of Chinese Academy of Sciences (CAS)
No.17 Xinxi Road, Xi'an, Shaanxi, China, 710119
Office Phone: +86-29-88887601
Email: liuhongjun@opt.ac.cn

Research Field:
- Nonlinear photonic technology and application
- Optical terahertz generation technology and application
- Mid infrared few photon imaging and detection technology
- Silicon-based micro-nano nonlinear photonic technology

Biography:
Liu Hongjun received his doctor degree of science from Graduate School of Chinese Academy of Sciences in 2003. Now he is a professor and deputy director of State Key Laboratory of Transient Optics and Photonics Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences. Furthermore, he is the winner of the first Lu Jiaxi young talent award of Chinese Academy of Sciences, the member of the Young Promotion Union of Science and Technology of Chinese Academy of Science, and the member of committee of China Optical Engineering Society. He has presided over and completed more than 30 research projects including National Natural Science Foundation of China, Knowledge Innovation Program of the Chinese Academy of Sciences, Natural Science Foundation of Shaanxi Province. Until now, he has published more than 150 research papers as the first author and corresponding author, and obtained 17 invention patents authorized by the state. In 2009, he was invited to visit Germany sponsored by the Humboldt Foundation. He has successively visited Japan, Australia, Germany, Italy, France, Switzerland, the United States, Austria, Spain and other countries for many international academic exchanges, and completed more than 40 invited reports of academic conferences. As the leader of the research group of nonlinear photon technology and application, his current main research work includes ultrashort and ultrahigh intensity laser technology, nonlinear enhancement and detection technology of weak light signal, high-efficiency optical terahertz generation technology and application, mid infrared few photon imaging and detection technology, silicon-based micro-nano nonlinear photonic technology, etc.

Representative Publications:
1.Yongbin Zhang, Hongjun Liu*, et al. “White-light image reconstruction via seeded modulation instability,” Physical Review Applied 12, 054005 (2019).
2.Zhaolu Wang, Hongjun Liu*, et al. “Nonlinear reconstruction of weak optical diffused images under turbid water,” Optics Letters 44(14), 3502-3505 (2019).
3.Xingpan Feng, Hongjun Liu*, et al. “Pulse signal restoration via stochastic resonance in a Fabry-Perot cavity with an intracavity nematic liquid crystal film,” Optics Express 27(10), 14931-14941 (2019).
4.Jing Han, Hongjun Liu*, et al. “Reconstructing a scattered image via spatial cross-phase modulation instability in partially incoherent beams,” Applied Physics Express 12, 012007 (2019).
5.Ciao Chi, Hongjun Liu*, et al. “High-performance transverse magnetic mode-pass polarizer based on silicon nitride-silicon subwavelength grating waveguide for mid-infrared wavelengths,” Applied Physics Express 11, 042005 (2018).
6.Zhen Li, Hongjun Liu*, et al. “Frequency-degenerate phase-sensitive optical parametric amplification based on four-wave mixing in graphene-silicon slot waveguide,” Applied Physics Express 11, 062201 (2018)
7.Jiao Chi, Hongjun Liu*, et al. “High-performance mid-infrared frequency upconversion in lithium niobate waveguide patterned with metasurfaces,” Journal of Physics D: Applied Physics 52, 035101 (2018).
8.Jing Han, Hongjun Liu*, et al. “Stochastic resonance based on modulation instability in spatiotemporal chaos,” Optics Express 25(7), 8306-8314 (2017).
9.Yongbin Zhang, Hongjun Liu*, et al. “Particle model for optical noisy image recovery via stochastic resonance,” Applied Physics Express 10, 102501 (2017).
10.Jing Han, Hongjun Liu*, et al. “Extracting nanosecond pulse signals via stochastic resonance generated by surface plasmon bistability,” Optics letters 40(22), 5367-5370 (2015).
11.Mingyang Zhou, Hongjun Liu*, et al. “Temporal cloak based on tunable optical delay and advance,” Optics Express 23(5), 6543-6553 (2015).
12.Zhaolu Wang, Hongjun Liu*, et al. “Frequency non-degenerate phase-sensitive optical parametric amplification based on four-wave-mixing in width-modulated silicon-waveguides,” Optics Express 22(25), 31486-31495 (2014).
13.Guangzhan Cao, Hongjun Liu*, et al. “Reconstructing signals via stochastic resonance generated by photorefractive two-wave mixing bistability,” Optics Express 22(4), 4214-4223 (2014).
14.Hongjun Liu*, et al. “Highly efficient pulse cleaner via nonlinear ellipse rotation in liquid CS2 for ultrashort pulses,” Optics Letters 38(11), 1838-1840 (2013).
15.Liang Shiguo, Liu Hongjun*, et al. “Temporal contrast enhancement of picosecond pulses based on phase-conjugate wave generation,” Optics Letters 37(2), 241-243 (2012).