Di Wang
Associate professor, School of Instrumentation and Optoelectronic Engineering, Beihang University
Research interest: 3D display technology
Email: diwang18@buaa.edu.cn
Work Experience
Associate Professor, School of Instrumentation and Optoelectronic Engineering, Beihang University, 02/2022-present
Post-doctoral Research Fellow, School of Instrumentation and Optoelectronic Engineering, Beihang University, 11/2018-01/2022
Lecturer, College of Physics and Electronic Engineering, Shanxi University, 06/2017-11/2018
Education History
Ph. D, School of Electronic Information, Sichuan University, 09/2012-06/2017
B. S, School of Electronic Information, Sichuan University, 09/2008-06/2012
Awards/Honors
Outstanding Post-doctoral Research Fellow of Beihang University in 2019
Outstanding Political Instructor of Shanxi University in 2017
Fundings
[1] National Natural Science Foundation of China General Program “Dynamic holographic near-eye 3D Display technology with large viewing angle” (62275009), 2023~2026 (Project leader)
[2] National Natural Science Foundation of China’s Joint Fund Project “Key technology research on high-density full-depth controlled scattering 3D holographic display” (U22A2079), 2023~2026 (Sub-project leader)
[3] National Key Research and Development Program of China “Near-eye 3D display technology and device with realistic scene” (2021YFB2802100), 2021~2024 (Sub-project leader)
[4] National Natural Science Foundation of China Youth Fund Project “Fast and high-quality computer-generated holographic 3D display technology based on liquid lens” (61805130), 2019~2021 (Project leader)
[5] Special Funding Project of China Postdoctoral Science Foundation “High-resolution dynamic holographic near-eye 3D display technology” (2020T130039), 2020~2021 (Project leader)
[6] China Postdoctoral Science Foundation Project “Dynamic large viewing angle computer-generated holographic 3D display technology based on liquid lens” (2019M650422), 2019~2020 (Project leader)
[7] Shanxi Province Applied Basic Research Project “Real-time acquisition and reproduction technology of holographic 3D video based on big data processing” (201801D221169)，2018-2020 (Project leader)
Fields of Research Interests and Accomplishments
Dr. Wang’s research interests are in 3D display technology. Her representative technical accomplishments are listed below.
[1] In terms of theory, a holographic display diffraction mechanism based on the effective area utilization was proposed. Under the guidance of this mechanism, the rapid generation technology of hologram was overcome. Compared with the conventional technology, the calculation speed of the hologram is increased by more than 2 times, and the holographic reproduction of real objects is realized. A high resolution holographic display technology with stray light elimination was proposed, and the signal-to-noise ratio of the reconstructed image was more than 10dB, which promotes the application of holography in AR display.
[2] In terms of system, a holographic 3D display system with large viewing angle was developed. Compared with similar foreign technologies, this system can expand the viewing area by more than 8 times and increase the viewing angle to 14 degrees, which solves the problem of small viewing angle of the existing holographic 3D display. The relevant research achievements have been recognized and positively evaluated by academician Guo-Fan Jin, Prof. W. Osten (SPIE/Optica Fellow) and other well-known experts in the field of optics.
Papers and patents
Di Wang published more than 70 papers cited by Science Citation Index (including 33 papers as the first/corresponding author). The published papers have been cited more than 800 times according to Web of Science. The research results have been cited by top journals such as Science, Nature Photonics, and Nature Communications. She holds more than 50 Chinese invention patents and 5 PCT international invention patents.
Journal Papers
[1] Di Wang†, Zhao-Song Li†, Yi Zheng, You-Ran Zhao, Chao Liu, Jin-Bo Xu, Yi-Wei Zheng, Qian-Huang, Chen-Liang Chang, Da-Wei Zhang, Song-Lin Zhuang, and Qiong-Hua Wang*, “Liquid lens based holographic camera for real 3D scene hologram acquisition using end-to-end physical model-driven network,” Light: Science & Applications, 13, 62, 2024.
[2] Di Wang†, Yi-Long Li†, Fan Chu†, Nan-Nan Li, Zhao-Song Li, Sin-Doo Lee, Zhong-Quan Nie, Chao Liu, and Qiong-Hua Wang*, “Color liquid crystal grating based color holographic 3D display system with large viewing angle,” Light: Science & Applications, 13, 16, 2024.
[3] Yi-Long Li†, Nan-Nan Li†, Di Wang*, Fan Chu, Sin-Doo Lee, Yi-Wei Zheng and Qiong-Hua Wang*, “Tunable liquid crystal grating based holographic 3D display system with wide viewing angle and large size,” Light: Science & Applications, 11, 188, 2022.
[4] Di Wang†, Zhao-Song Li†, Yi-Wei Zheng†, Nan-Nan Li, Yi-Long Li, and Qiong-Hua Wang*, “High-quality holographic 3D display system based on virtual splicing of spatial light modulator,” ACS Photonics, 10(7), 2297-2307, 2023.
[5] Di Wang†, Nan-Nan Li†, Yi-Long Li, Yi-Wei Zheng, Zhong-Quan Nie, Zhao-Song Li, Fan Chu*, and Qiong-Hua Wang*, “Large viewing angle holographic 3D display system based on maximum diffraction modulation,” Light: Advanced Manufacturing, 4, 18, 2023.
[6] Di Wang, Nan-Nan Li, Zhao-Song Li, Chun Chen, Byoungho Lee and Qiong-Hua Wang*, “Color curved hologram calculation method based on angle multiplexing,” Optics Express, 30(2), 3157-3171, 2022.
[7] Di Wang, Nan-Nan Li, Yi-Long Li, Yi-Wei Zheng, and Qiong-Hua Wang*, “Curved hologram generation method for speckle noise suppression based on stochastic gradient descent algorithm,” Optics Express, 29(26), 42650-42662, 2021.
[8] Di Wang, Jin-Bo Xu, Rong-Ying Yuan, You-Ran Zhao, Chao Liu, and Qiong-Hua Wang*, “High stability liquid lens with optical path modulation function,” Optics Express, 29(17), 27104-27117, 2021.
[9] Di Wang, Chao Liu, Chuan Shen, Yan Xing, and Qiong-Hua Wang*, “Holographic capture and projection system of real object based on tunable zoom lens,” PhotoniX, 1(1), 6, 2020.
[10] Di Wang, Nan-Nan Li, Chao Liu, and Qiong-Hua Wang*, “Holographic display method to suppress speckle noise based on effective utilization of two spatial light modulators,” Optics Express, 27(8), 11617-11625, 2019.
[11] Di Wang, Chao Liu, Fan Chu, and Qiong-Hua Wang*, “Full color holographic display system based on intensity matching of reconstructed image,” Optics Express, 27(12), 16599-16612, 2019.
[12] Di Wang, Chao Liu, and Qiong-Hua Wang*, “Holographic zoom micro-projection system based on three spatial light modulators,” Optics Express, 27(6), 8048-8058, 2019.
[13] Di Wang, Chao Liu, and Qiong-Hua Wang*, “Method of chromatic aberration elimination in holographic display based on zoomable liquid lens,”Optics Express, 27(7), 10058-10066, 2019.
[14] Di Wang, Chao Liu, Lei Li, Xin Zhou, and Qiong-Hua Wang*, “Adjustable liquid aperture to eliminate undesirable light in holographic projection,” Optics Express, 24(3), 2098-2105, 2016.
[15] Di Wang, Yi-Wei Zheng, Nan-Nan Li, and Qiong-Hua Wang*, “Holographic display system to suppress speckle noise based on beam shaping,” Photonics, 8(6), 204, 2021.
[16] Di Wang, Chao Liu, Shu-Feng Lin, and Qiong-Hua Wang*, “Holographic display technology based on liquid crystal device,” Journal of the Society for Information Display, 28(2), 136-147, 2020.
[17] Di Wang, Chao Liu, and Qiong-Hua Wang*, “Adjustable optical slit based on the phase type spatial light modulator,” IEEE Photonics Journal, 11(2), 7000408, 2019.
[18] Di Wang, Dan Xiao, Su-Juan Liu, Chao Liu, and Qiong-Hua Wang*, “Color holographic display system based on utilization of effective viewing area,” Journal of the Society for Information Display, 27(10), 646-653, 2019.
[19] Di Wang, Dan Xiao, Nan-Nan Li, Chao Liu, and Qiong-Hua Wang*, “Holographic display system based on effective area expansion of SLM,” IEEE Photonics Journal, 11(6), 7001312, 2019.
[20] Di Wang, De-Hong Wang, Chuan Shen, Chao Liu, and Qiong-Hua Wang*, “Adjustable aperture based on the phase modulation of spatial light modulator,” IEEE Journal of Display Technology, 12(5), 447-450, 2016.
[21] Di Wang, Chao Liu, Chuan Shen, Xin Zhou, and Qiong-Hua Wang*, “A holographic zoom system without undesirable light,” Optik, 127(19), 7782-7787, 2016.
[22] Di Wang, Qiong-Hua Wang*, Chuan Shen, Xin Zhou, and Chao Liu, “Color holographic zoom system based on a liquid lens,” Chinese Optics Letters, 13(7), 072301, 2015.
[23] Di Wang, Qiong-Hua Wang*, Xin Zhou, and Cui Wang, “Holographic projection method to realize adjusting location of reconstruction,” Optik, 126(24), 5372-5375, 2015.
[24] Di Wang, Qiong-Hua Wang*, Jun Wang, Xin Zhou and Da-Hai Li, “Color holographic display method based on a single-spatial light modulator”, Optical Engineering , 53(4), 045104. 2014.
[25] Di Wang, Qiong-Hua Wang*, Chuan Shen, Xin Zhou and Chun-Mei Liu, “Active optical zoom system”, Applied Optics, 53(31), 7402-7406, 2014.
[26] Di Wang, Chao Liu, Qiong-Hua Wang*, and Xin Zhou, “Voltage controlled optical filter based on electrowetting,” Chinese Optics Letters, 12(12), 121102, 2014.
[27] Nan-Nan Li, Chun Chen, Byoungho Lee, Di Wang*, and Qiong-Hua Wang*, “Speckle noise suppression algorithm of holographic display based on spatial light modulator (Invited),” Frontiers in Photonics, 2, 825610, 2022.
[28] Su-Juan Liu, Ning-Tao Ma, Ping-Ping Li, and Di Wang*, “Holographic near-eye 3D display method based on large-size hologram,” Frontiers in Materials, 8, 739449, 2021.
[29] Su-Juan Liu, Ning-Tao Ma, Feng-Xiao Zhai, Nan-Nan Liu, Ping-Ping Li, Yun-Qi Hao, and Di Wang*, “Large field-of-view holographic display method with speckle noise suppression based on time multiplexing,” Journal of the Society for Information Display, 29(10), 758-767, 2021.
[30] Su-Juan Liu, Di Wang*, Feng-Xiao Zhai, Nan-Nan Liu, and Qi-Yun Hao, “Holographic display method with a large field of view based on holographic functional screen,” Applied Optics, 59(20), 5983-5988, 2020.
[31] Chen-Liang Chang, Di Wang, Dong-Chen Zhu, Jia-Mao Li*, Jun Xia, and Xiao-Lin Zhang, “Deep learning based computer-generated hologram from a stereo image pair,” Optics Letters, 47(6), 1482-1485, 2022.
[32] Yi Zheng, Di Wang, Zhao Jiang, Chao Liu, and Qiong-Hua Wang*, “Continuous zoom compound eye imaging system based on liquid lenses,” Optics Express, 29(23), 37565-37579, 2021.
[33] Zhao Jiang, Di Wang, Yi Zheng, Chao Liu, and Qiong-Hua Wang*, “Continuous optical zoom microscopy imaging system based on liquid lenses,” Optics Express, 29(13), 20322-20335, 2021.
[34] Chen Chun, Byounghyo Lee, Nan-Nan Li, Minseok Chae, Di Wang, Qiong-Hua Wang, and Byoungho Lee*, “Multi-depth hologram generation using stochastic gradient descent algorithm with complex loss function,” Optics Express, 29(10), 15089-15103, 2021.
[35] Shu-Feng Lin, Philippe Gentet, Di Wang, Seung-Hyun Lee, Eun-Soo Kim, and Qiong-Hua Wang*, “Simply structured full-color holographic three-dimensional display using angular-compensating holographic optical element,” Optics and Lasers in Engineering, 138, 106404, 2021.
[36] Yi-Long Li, Di Wang, Nan-Nan Li, and Qiong-Hua Wang*, “Fast hologram generation method based on the optimal segmentation of a sub-CGH,” Optics Express, 28(21), 32185-32198, 2020.
[37] Nan-Nan Li, Di Wang, Yi-Long Li, and Qiong-Hua Wang*, “Method of curved composite hologram generation with suppressed speckle noise,” Optics Express, 28(23), 34378-34389, 2020.
[38] Chao Liu, Di Wang, Guang-Xu Wang, Zhao Jiang, and Qiong-Hua Wang*, “1550 nm infrared/visible light switchable liquid optical switch,” Optics Express, 28(6), 8974-8984, 2020.
[39] Chao Liu, Di Wang, Qiong-Hua Wang*, and Yan Xing, “Multifunctional optofluidic lens with beam steering,” Optics Express, 28(5), 7734-7745, 2020.
[40] Chao Liu, Di Wang, and Qiong-Hua Wang*, “A multidirectional beam steering refector actuated by hydraulic control,” Scientific Reports, 9, 5086, 2019.
[41] Chao Liu, Di Wang, Qiong-Hua Wang*, and Jiancheng Fang, “Electrowetting-actuated multifunctional optofluidic lens to improve the quality of computer-generated holography,” Optics Express, 27(9), 12963-12975, (2019).
[42] Chao Liu, Di Wang, and Qiong-Hua Wang*, “Variable aperture with graded attenuation combined with adjustable focal length lens,” Optics Express, 27(10), 14075-14084, 2019.
[43] Chao Liu, Di Wang, and Qiong-Hua Wang*, “Holographic display system with adjustable viewing angle based on multi-focus optofluidic lens,” Optics Express, 27(13), 18210-18221, 2019.
[44] Chao Liu, Di Wang, Lei Li, and Qiong-Hua Wang*, “Multifunction reflector controlled by liquid piston for optical switch and beam steering,” Optics Express, 27(23), 33233-33242, 2019.
[45] Shu-Feng Lin, Di Wang, Qiong-Hua Wang* and Eun-Soo Kim, “Full-color holographic 3D display system using off-axis color-multiplexed-hologram on single SLM,” Optics and Lasers in Engineering, 126, 105895, 2020.
[46] Lei Li, Di Wang, Chao Liu, and Qiong-Hua Wang*, “Ultrathin zoom telescopic objective,” Optics Express, 24(16), 18674-18684, 2016.
[47] Lei Li, Di Wang, Chao Liu, and Qiong-Hua Wang*, “Zoom microscope objective using electrowetting lenses,” Optics Express, 24(3), 2931-2940, 2016.
Patents(>50, selected)
[1] Di Wang, Qiong-Hua Wang, Zhao-Song Li, Nan-Nan Li, Yi-Long Li, Chao Liu, Holographic 3D display system based on virtual array splicing of spatial light modulator, Chinese Patent ZL202110812111.2.
[2] Qiong-Hua Wang, Di Wang, Yi-Wei Zheng Yiwei, Zhao-Song Li, Holographic display system based on phase-only composite curved hologram, Chinese Patent ZL202011110949.9
[3] Di Wang, Qiong-Hua Wang, Chao Liu, Chu Fan, Yi-Long Li, Holographic true 3D display system and method based on adjustable liquid crystal grating, Chinese Patent ZL202011479541.9.
[4] Di Wang, Qiong-Hua Wang, Chao Liu, Nan-Nan Li, Yi-Long Li, Method for holographic speckle noise suppression based on layered pixel scanning algorithm, Chinese Patent ZL202010149335.5
[5] Di Wang, Qiong-Hua Wang, Yi-Long Li, Nan-Nan Li, Chao Liu, Fast hologram calculation method based on hologram optimization segmentation calculation, Chinese Patent ZL202010288882.1
[6] Di Wang, Qiong-Hua Wang, Chao Liu, Dan Xiao, Large viewing angle holographic display system based on high optical power liquid lens, Chinese Patent ZL201910374243.4
[7] Di Wang, Qiong-Hua Wang, Chao Liu, Dan Xiao, Nan-Nan Li, Large-size holographic display method based on the effective use of two spatial light modulators, Chinese Patent ZL201910374246.8
[8] Di Wang, Qiong-Hua Wang, Chao Liu, Dan Xiao, Luo-Zhi Zhang, Large viewing angle holographic display system based on the effective area expansion of the spatial light modulator, Chinese Patent ZL201910374242.X
[9] Qiong-Hua Wang, Di Wang, Chao Liu, Holographic display system for speckle noise suppression based on beam shaping, Chinese Patent ZL201910299696.5.
[10] Qiong-Hua Wang, Di Wang, Chao Liu, Speckle noise suppression method in holography based on effective utilization of spatial light modulator, Chinese Patent ZL201910246161.1.
[11] Di Wang, Qiong-Hua Wang, Chao Liu, Chu Fan, and Yi-Long Li, Tunable crystal grating-based holographic true 3D display system and method, U.S. Patent No.11,860,385
[12] Di Wang, Qiong-Hua Wang, Chao Liu, Chu Fan, and Yi-Long Li, Holographic true 3D display system and method based on adjustable liquid crystal grating, PCT Patent PCT/CN2021/070320
[13] Di Wang, Qiong-Hua Wang, Zhao-Song Li, Nan-Nan Li, Yi-Long Li, and Chao Liu, Holographic 3D display system based on virtual array splicing of spatial light modulator, PCT Patent PCT/CN2021/111015
[14] Di Wang, Ying-Fei Pang, Qiong-Hua Wang, Li-Jun Xu, Nan-Nan Li, and Zhao-Song Li, Crosstalk-free holographic 3D display method based on the principle of diffraction blur imaging, PCT Patent PCT/CN2021/115786
[15] Di Wang, Qiong-Hua Wang, Nan-Nan Li, Yi-Wei Zheng, and Zhao-Song Li, Calculation method of polarization hologram based on high-frequency phase factor, PCT Patent PCT/CN2021/132856
