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Prof. dr. ir. Yanlu Li  (Professor)

This person is working in this group since 2008.
Affiliation: Ghent University - IMEC
Department of Information Technology
Address: Technologiepark-Zwijnaarde 126
9052 Ghent
Belgium
Office: iGent, Office 150.027
Phone: +32-9-26 43471
E-mail: Yanlu.Li@ugent.be
ORCID: 0000-0003-3440-1972
Research Area: Miniaturized laser Doppler vibrometer on silicon-on-insulator (SOI)
PhD Thesis: Yanlu Li, Miniaturisatie van een laser-dopplervibrometer door middel van een fotonisch circuit op basis van silicium, Miniaturized Laser Doppler Vibrometer Integrated on a Silicon Photonics Platform, 9/2013
YanluLi
Yanlu Li is a part-time professor at Ghent University and is a staff member at imec. He received a bachelor's degree in applied physics from Dalian University of Technology in 2006 and the Erasmus Mundus Master degree of Science in Photonics from Universiteit Gent, Vrije Universiteit Brussel, University of St Andrews, Heroit-Watt University and Kungliga Tekniska Hogskolan (KTH)in 2008. He obtained a PhD degree in Photonics at Universiteit Gent, where his research topic is Miniaturized Laser Doppler Vibrometer (LDV) Integrated on a Silicon Photonics Platform.

He has worked and is working for several research projects related to LDV, including H2020 CARDIS, H2020 InSiDe, and H2020 PhotonicLEAP.

His research interest is in photonic integrated circuit techniques used for non-contact and non-destructive sensing and imaging in various applications, including biomedical sensing and imaging, structural health monitoring, and non-destructive testing for materials and structures.

Specific Research Topics

Current Postdoctoral Researchers

Current PhD Students

Patents

Publications (48)

    International Journals

  1. Silvia Seoni, Simeon Beeckman, Y. Li, Soren Aasmul, Umberto Morbiducci, R. Baets, Pierre Boutouyrie, Filippo Molinari, Nilesh Madhu, Patrick Segers, Template matching and Matrix Profile for Signal Quality Assessment of Carotid and Femoral Laser Doppler Vibrometer Signals, Frontiers in Physiology, 12, p.2389 (2022).
  2. Y. Li, R. Baets, Nonlinear signal errors in homodyne laser Doppler vibrometry induced by strong second-order ghost reflections and their mitigation, Optics Express, 29(6), p.8283 - 8295 doi:10.1364/OE.418439 (2021)  Download this Publication (3.1MB).
  3. Y. Li, L. Marais, H. Khettab, Z. Quan, S. Aasmul, R. Leinders, R. Schuler, P. Morrissey, S. Greenwald, P. Segers, M. Vanslembrouck, R. Bruno, P. Boutouyrie, P. O'Brien, M. de Melis, R. Baets, Silicon photonics-based laser Doppler vibrometer array for carotid-femoral pulse wave velocity (PWV) measurement, Biomedical Optics Express, 11(7), p.3913-3926 doi:10.1364/BOE.394921 (2020)  Download this Publication (2.1MB).
  4. L. Marais, H. Khettab, Y. Li, P. Segers, R. Baets, K. Reesink, S. Aasmul, M. De Melis, P. Boutouyrie, Measurement of Aortic Stiffness By Laser Doppler Vibrometry: THE CARDIS STUDY, Journal of Hypertension, 37, p.e88 doi:10.1097/01.hjh.0000570292.62996.dd (2019)  Download this Publication (250KB).
  5. V. Mancini, D. Tommasin, Y. Li, J. Reeves, R. Baets, S. Greenwald, P. Segers, Detecting carotid stenosis from skin vibrations using Laser Doppler Vibrometry : an in-vitro proof-of-concept, PLOS ONE, 14(6), p.e0218317 doi:10.1371/journal.pone.0218317 (2019)  Download this Publication (3.3MB).
  6. B. Ouyang, Y. Li, M. Kruidhof, R. Horsten, K. Van Dongen, J. Caro, On-chip silicon Mach-Zehnder interferometer sensor for ultrasound detection, Optics Letters, 44(8), p.1928-1931 doi:10.1364/ol.44.001928 (2019)  Download this Publication (1.7MB).
  7. J. Zhu, Y. Li, R. Baets, Mitigation of speckle noise in laser Doppler vibrometry by using a scanning average method, Optics Letters, 44(7), p.1860-1863 doi:10.1364/ol.44.001860 (2019).
  8. Y. Li, J. Zhu, M. Duperron, P. O'Brien, R. Schuler, S. Aasmul, M. De Melis, M. Kersemans, R. Baets, Six-beam homodyne laser Doppler vibrometry based on silicon photonics technology, Optics Express, 26(3), p.3638-3645 doi:10.1364/oe.26.003638 (2018)  Download this Publication (1.6MB).
  9. Y. Zhu, J. Wang, W. Xie, B. Tian, Y. Li, E. Brainis, Yuqing Jiao, D. Van Thourhout, Ultra-Compact Silicon Nitride Grating Coupler for Microscopy Systems, Optics Express, 25(26), p.33297-33304 doi:10.1364/oe.25.033297 (2017)  Download this Publication (2.4MB).
  10. J. Zhang, Y. Li, S. Dhoore, G. Morthier, G. Roelkens, Unidirectional, widely-tunable and narrow-linewidth heterogeneously integrated III-V-on-silicon laser, Optics Express, 25(6), United States, p.7092-7100 doi:10.1364/OE.25.007092 (2017)  Download this Publication (2.8MB).
  11. A. Rahim, E.M.P. Ryckeboer, A. Subramanian, S. Clemmen, B. Kuyken, A. Raza, A. Hermans, M. Muneeb, S. Dhoore, Y. Li, U.D. Dave, P. Bienstman, N. Le Thomas, G. Roelkens, D. Van Thourhout, P. Helin, S. Severi, X. Rottenberg, R. Baets, Expanding the Silicon Photonics Portfolio with Silicon Nitride Photonic Integrated Circuits, Journal of Lightwave Technology (invited), 35(4), p.639-649 doi:10.1109/JLT.2016.2617624 (2017)  Download this Publication (598KB).
  12. Y. Li, P. Segers, J. Dirckx, R. Baets, On-chip laser Doppler vibrometer for arterial pulse wave velocity measurement, Biomedical Optics Express, 4(7), p.1229-1235 doi:10.1364/boe.4.001229 (2013)  Download this Publication (2.8MB).
  13. Y. Li, R. Baets, Homodyne laser Doppler vibrometer on silicon-on-insulator with integrated 90 degree optical hybrids, Optics Express, 21(11), p.13342-13350 doi:10.1364/oe.21.013342 (2013)  Download this Publication (4.1MB).
  14. Y. Li, L. Li, B. Tian, G. Roelkens, R. Baets, Reflectionless tilted grating couplers with improved coupling efficiency based on a silicon overlay, Photonics Technology Letters, 25(13), p.1195-1198 doi:10.1109/LPT.2013.2261484 (2013)  Download this Publication (2.5MB).
  15. Y. Li, S. Verstuyft, G. Yurtsever, S. Keyvaninia, G. Roelkens, D. Van Thourhout, R. Baets, Heterodyne laser Doppler vibrometers integrated on silicon-on-insulator with thermo-optic based frequency shifters, Applied Optics, 52(10), p.2145-2152 doi:10.1364/AO.52.002145 (2013)  Download this Publication (2.6MB).
  16. Y. Li, D. Vermeulen, Y. De Koninck, G. Yurtsever, G. Roelkens, R. Baets, Compact grating couplers on silicon-on-insulator with reduced backreflection, Optics Letters, 37(21), p.4356-4358 doi:10.1364/ol.37.004356 (2012)  Download this Publication (406KB).
  17. D. Vermeulen, Y. De Koninck, Y. Li, W. Bogaerts, R. Baets, G. Roelkens, Reflectionless grating couplers for SOI photonic integrated circuits , Optics Express, p.22278-22283 doi:10.1364/OE.20.022278 (2012)  Download this Publication (1.1MB).
  18. H. Yu, M. Pantouvaki, J. Van Campenhout, D. Korn, K. Komorowska, P. Dumon, Y. Li, P. Verheyen, P. Absil, L. Alloatti, D. Hillerkuss, J. Leuthold, R. Baets, W. Bogaerts, Performance tradeoff between lateral and interdigitated doping patterns for high speed carrier-depletion based silicon modulators, Optics express, 20(12), p.12926-12938 doi:10.1364/oe.20.012926 (2012)  Download this Publication (2.1MB).
  19. L. Wang, Y. Li, M. Porcel, D. Vermeulen, X. Han, J. Wang, X. Jian, R. Baets, M. Zhao, G. Morthier, A polymer-based surface grating coupler with an embedded Si3N4 layer, Journal of Applied Physics, 111(11), p.114507 doi:10.1063/1.4724335 (2012)  Download this Publication (1.6MB).
  20. Y. Li, S. Meersman, R. Baets, Realization of fiber based laser Doppler vibrometer with serrodyne frequency shifting, Applied Optics, 50(17), p.2809-2814 doi:10.1364/ao.50.002809 (2011)  Download this Publication (404KB).
      International Conferences

    1. E. Dieussaert, Y. Li, G. Morthier, R. Baets, Influence of optical amplifiers for on-chip homodyne laser Doppler vibrometers, Journal of Physics: Conference series, 2041, Italy, p.012005 doi:10.1088/1742-6596/2041/1/012005 (2021)  Download this Publication (617KB).
    2. Y. Li, S. Aasmul, P. Morrissey, D. Carey, T. Wotherspoon, P. Zaruba, R. Baets, Optimization of multi-beam silicon photonics based laser Doppler vibrometry for measuring cardiovascular signals on bare skin, Photonics West BiOS, 11621, p.116210A doi:10.1117/12.2577159 (2021)  Download this Publication (967KB).
    3. L. Marais, H. Khettab, Y. Li, P. Segers, R. Baets, K. Reesink, S. Aasmul, M. De Melis, P. Boutouyrie, 2.6 Validation of the Measurement of Aortic Stiffness by the CARDIS Laser Doppler Vibrometer, Artery Research, 25(1), p.S15-S15 doi:10.2991/artres.k.191224.011 (2020)  Download this Publication (138KB).
    4. B. Ouyang, Y. Li, M. Kruidhof, R. Horsten, R. Baets, K.W.A. van Dongen, J. Caro, Highly sensitive silicon Mach-Zehnder interferometer based ultrasound sensor, SPIE Photonics West Conference, 11283, United States, p.paper 112830R1 (9 pages) doi:10.1117/12.2539573 (2020)  Download this Publication (1.2MB).
    5. R. Baets, Y. Li, Silicon photonics enabled laser doppler vibrometry and its application in cardiovascular medicine, Optimess 2019, (2019)  Download this Publication (3.6MB).
    6. D. Tommasin, Y. Li, J. Reeves, R. Baets, S. Greenwald, P. Sergers, P168 Feasibility study of local pulse wave velocity estimation in the carotid artery with multi-beam Laser Doppler vibrometer, Artery Research, 24(C), p.129 - 130 doi:10.1016/j.artres.2018.10.221 (2018)  Download this Publication (462KB).
    7. L. Marais, S. Aasmul, R. Baets, M. De Melis, S. Greenwald, H. Khettab, Y. Li, F. Prinzen, K. Reesink, P. Segers, P. Boutouyrie, P51 Non-contact measurement of local carotid and carotid-femoral pulse wave velocity by laser Doppler vibrometry: validation of a new device against reference techniques in hypertensive patients, Artery Research, 24(C), p.93-93 doi:10.1016/j.artres.2018.10.104 (2018)  Download this Publication (625KB).
    8. V. Mancini, D. Tommasin, Y. Li, R. Baets, S. Greenwald, P. Sergers, 4.4 Can laser Doppler vibrometer detect carotid stenosis from skin vibrations? Hydraulic bench tests on patient-specific model, Artery Research, 24(C), p.76-76 doi:10.1016/j.artres.2018.10.043 (2018).
    9. R. Baets, Y. Li, Medical device applications of silicon photonics., European Optical Society Biennial Meeting (EOSAM) 2018 (invited), Netherlands, (2018)  Download this Publication (677KB).
    10. R. Baets, Y. Li, Medical device applications of silicon photonics, Frontiers in Optics (FiO) 2018 (invited), United States, (2018).
    11. V. Mancini, D. Tommasin, Y. Li, R. Baets, S. Greenwald, P. Segers, Detecting carotid stenosis from skin vibrations: proof-of-principle from hydraulic bench tests on a compliant stenotic carotid bifurcation model, World Conference Biomechanics, Ireland, (2018)  Download this Publication (501KB).
    12. Y. Li, J. Zhu, M. Duperron, P. O'Brien, R. Schuler, S. Aasmul, M. De Melis, R. Baets, Speckle mitigation in laser Doppler vibrometry based on a compact silicon photonics chip, Conference on Lasers and Electro-Optics, United States, p.1-2 doi:10.1364/cleo_at.2018.atu3i.5 (2018).
    13. Y. Li, S. Greenwald, D. Tommasin, J. Zhu, P. Segers, S. Aasmul, M. de Melis, M. Duperron, P. O'Brien, R. Schuler, R. Baets, Non-invasive cardiovascular disease assessment with miniaturized multi-beam laser Doppler vibrometry, Biophotonics Congress: Biomedical Optics Congress 2018, United States, p.CW4B.7 doi:10.1364/translational.2018.cw4b.7 (2018).
    14. M. Duperron, L. Carroll, M. Rensing, S. Collins, Y. Zhao, Y. Li, R. Baets, P. O'Brien, Hybrid integration of laser source on silicon photonic integrated circuit for low-cost interferometry medical device, Proc. SPIE 10109, Optical Interconnects XVII, 10109, United States, p.1010915 (17 Pages) doi:10.1117/12.2250921 (2017)  Download this Publication (1.8MB).
    15. Y. Li, M. Vanslembrouck, R. Baets, Two-way-fed silicon-on-insulator grating couplers with a broad bandwidth, Advanced Photonics 2016 (IPR, NOMA, Sensors, Networks, SPPCom, SOF), Canada, p.ITu1B.5 doi:10.1364/iprsn.2016.itu1b.5 (2016)  Download this Publication (509KB).
    16. T. Spuesens, Y. Li, P. Verheyen, G. Lepage, S. Balakrishnan, P. Absil, R. Baets, Integrated Optical Frequency Shifter on a Silicon Platform, Conference on Lasers and Electro-Optics, OSA Technical Digest (online) (Optical Society of America, 2016), paper SF2G.1., United States, United States, p.paper SF2G.1 doi:10.1364/CLEO_SI.2016.SF2G.1 (2016)  Download this Publication (295KB).
    17. W. Bogaerts, Y. Li, S. Pathak, A. Ruocco, M. Fiers, A. Ribeiro, E. Lambert, P. Dumon, Integrated design for integrated photonics: from the physical to the circuit level and back , Proc. SPIE 8781, Integrated Optics: Physics and Simulations (invited), Czech Republic, p.878102 doi:10.1117/12.2017761 (2013)  Download this Publication (2.2MB).
    18. L. Li, Y. Li, G. Morthier, Properties of shallowly etched second order grating in silicon-on-insulator (SOI) waveguide, 2013 Annual Workshop of the IEEE Photonics Benelux Chapter, Belgium, p.23-24 (2013)  Download this Publication (268KB).
    19. G. Roelkens, D. Vermeulen, Y. Li, Y. De Koninck, S. Selvaraja, K. Van Acoleyen, D. Van Thourhout, R. Baets, Silicon grating structures for optical fiber interfacing and III-V/silicon opto-electronic components, SPIE Photonics West Conference 2013 - High Contrast Metastructures II (invited), 8633, United States, p.86330S doi:10.1117/12.2001289 (2013)  Download this Publication (637KB).
    20. Y. Li, S. Verstuyft, G. Yurtsever, S. Keyvaninia, G. Roelkens, D. Van Thourhout, R. Baets, Miniaturized laser Doppler vibrometers integrated on silicon-on-insulator with thermo-optic serrodyne optical frequency shifter, 9th International Conference on Group IV Photonics, United States, p.219-221 doi:10.1109/group4.2012.6324139 (2012)  Download this Publication (761KB).
    21. Y. Li, R. Baets, Single-channel laser Doppler vibrometers integrated on silicon-on-insulator (SOI), Proceedings of the 5th international conference on optical measurement techniques for structures & systems (OPTIMESS2012), Belgium, p.235 (2012)  Download this Publication (709KB).
    22. Y. Li, D. Vermeulen, Y. De Koninck, G. Yurtsever, G. Roelkens, R. Baets, Fiber couplers for silicon-on-insulator photonic IC's with optimized on-chip return loss, Optical Fiber Communication Conference (OFC) 2012, p.JTh2A.8 (2012)  Download this Publication (931KB).
    23. L. Wang, Y. Li, M. Porcel, D. Vermeulen, X. Han, J. Wang, X. Jian, M. Zhao, G. Morthier, Grating couplers in polymer with a thin Si3N4 layer embeded, SPIE Photonics West 2012, 8258, United States, p.825817-1~7 doi:10.1117/12.908553 (2012)  Download this Publication (3.8MB).
    24. Y. Li, R. Baets, Improved multi-mode interferometers (MMIs) on silicon-on-insulator with the optimized return loss and isolation, Proceedings of the 2011 annual symposium of the IEEE Photonics Benelux Chapter, p.205-208 (2011)  Download this Publication (155KB).
    25. D. Vermeulen, Y. De Koninck, Y. Li, E. Lambert, W. Bogaerts, R. Baets, G. Roelkens, Reflectionless Grating Coupling for Silicon-on-Insulator Integrated Circuits, 8th International Conference in Group IV Photonics 2011, United Kingdom, p.74-76 (P1.6) doi:10.1109/group4.2011.6053720 (2011)  Download this Publication (1.9MB).
    26. Y. Li, S. Meersman, R. Baets, Optical frequency shifter on SOI using thermo-optic serrodyne modulation, 2010 7th IEEE International conference on group IV photonics, China, p.75-77 doi:10.1109/group4.2010.5643423 (2010)  Download this Publication (974KB).
    27. Y. Li, R. Baets, Miniaturized laser doppler velocimeters (LDVs) integrated on silicon-on-insulator (SOI), Proceedings of the 2009 Annual Symposium of the IEEE Photonics Benelux Chapter, Belgium, p.97-100 (2009)  Download this Publication (285KB).
        National Conferences

      1. Y. Li, Miniaturized laser doppler velocimeters (LDVs) integrated on silicon-on-insulator (SOI), 10e Ugent-Firw Doctoraatssympoisum , Belgium, (2009)  Download this Publication (289KB).
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