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Dr. ir. Ali Raza 

This person worked in the group from 2015 till 2019.

E-mail: ali.raza@ugent.be
LinkedIn: https://www.linkedin.com/in/ali-raza-38a30565/
Personal Homepage: https://www.researchgate.net/profile/Ali_Raza98/info
Promotors: Roel Baets and Stephane Clemmen
PhD Thesis: Ali Raza, Ramanspectroscopie versterkt door geintegreerde dielektrische en metalen golfgeleiders, Raman spectroscopy enhanced by on-chip dielectric and metal waveguides, 12/2019
AliRaza

Specific Research Topics

Publications (37)

    International Journals

  1. K.A. Reynkens, S. Clemmen, H. Zhao, A. Raza, T. Vanackere, A. Stassen, M. Van Daele , J. Dendooven, R. Baets, Gold-induced photothermal background in on-chip surface enhanced stimulated Raman spectroscopy, Optics Letters, 29(6), p.8283-8295 doi:10.1364/OL.418527 (2021)  Download this Publication (1.3MB).
  2. K.A. Reynkens, S. Clemmen, A. Raza, H. Zhao, J. S-D. Penaranda, C. Detavernier, R. Baets, Mitigation of photon background in nanoplasmonic all-on-chip Raman sensors, Optics Express, 28(26), p.33564-33572 doi:10.1364/OE.408638 (2020)  Download this Publication (1.1MB).
  3. N. Turk, A. Raza, P.C. Wuytens, H. Demol, M. van Daele, C. Detavernier, A. Skirtach, K. Gevaert, R. Baets, Waveguide-based surface-enhanced Raman spectroscopy detection of protease activity using non-natural aromatic amino acids , Biomedical Optics Express, 11(8), p.4800-4816 doi:10.1364/BOE.398038 (2020)  Download this Publication (1.2MB).
  4. Y. Li, H. Zhao, A. Raza, S. Clemmen, R. Baets, Surface-enhanced Raman spectroscopy based on plasmonic slot waveguides with free-space oblique illumination, Journal of Quantum Electronics, 56(1), p.paper 7200108 (8 pages) doi:10.1109/jqe.2019.2946839 (2020)  Download this Publication (3.1MB).
  5. H. Zhao, B. Baumgartner, A. Raza, A. Skirtach, B. Lendl, R. Baets, Multiplex volatile organic compound Raman sensing with nanophotonic slot waveguides functionalized with a mesoporous enrichment layer, Optics Letters, 45(2), p.447-450 doi:10.1364/OL.379469 (2020)  Download this Publication (821KB).
  6. N. Turk, A. Raza, P.C. Wuytens, M. Van Daele, C. Detavernier, A. Skirtach, K. Gevaert, R. Baets, Comparison of Free-Space and Waveguide-Based SERS Platforms., Nanomaterials (invited), 9(10), p.paper 1404 (1-14) doi:10.3390/nano9101401 (2019)  Download this Publication (1.8MB).
  7. M. Van Daele, M. Griffiths, A. Raza, S. Matthias, F. Eduardo, J.-Y. Feng, R. Ramachandran, S. Clemmen, R. Baets, S. Barry, C. Detavernier , J. Dendooven, Plasma-enhanced atomic layer deposition of nanostructured gold near room temperature, ACS Appl. Mater. Interfaces, 40(11), p.37229-37238 doi:10.1021/acsami.9b10848 (2019)  Download this Publication (3.8MB).
  8. A. Raza, S. Clemmen, P.C. Wuytens, M. de Goede, A. Tong, N. Le Thomas, C. Liu, J. Suntivich, A. Skirtach, S. Garcia-Blanco, D. Blumenthal, J. Wilkinson, R. Baets, High index contrast photonic platforms for on-chip Raman spectroscopy, Optics Express, 27(16), p.23067-23079 doi:10.1364/OE.27.023067 (2019)  Download this Publication (1.3MB).
  9. J. Losada, A. Raza, S. Clemmen, A. Serrano, A. Griol, R. Baets, A. Martinez, SERS detection via individual bow-tie nanoantenna integrated in SiN waveguides, IEEE Journal on Selected Topics in Quantum Electronics, doi:10.1109/jstqe.2019.2896200 (2019).
  10. A. Raza, S. Clemmen, P.C. Wuytens, M. Muneeb, M. V. Daele, J. Dendooven, C. Detavernier, A. Skirtach, R. Baets, ALD assisted nanoplasmonic slot waveguide for on-chip Enhanced Raman Spectroscopy, Applied Physics Letters - Photonics, 3(11), p.116105 (12 pages) doi:10.1063/1.5048266 (2018)  Download this Publication (1.2MB).
  11. F. Peyskens, P.C. Wuytens, A. Raza, P. Van Dorpe, R. Baets, Waveguide excitation and collection of surface-enhanced Raman scattering from a single plasmonic antenna, Nanophotonics, 7(7), p.1299–1306 doi:10.1515/nanoph-2018-0003 (2018)  Download this Publication (1.1MB).
  12. N. Le Thomas, A. Dhakal, A. Raza, F. Peyskens, R. Baets, Impact of fundamental thermodynamic fluctuations on light propagating in photonic waveguides made of amorphous materials, Optica, 5(4), p.328-336 doi:10.1364/OPTICA.5.000328 (2018)  Download this Publication (1.1MB).
  13. H. Zhao, S. Clemmen, A. Raza, R. Baets, Stimulated Raman spectroscopy of analytes evanescently probed by a silicon nitride photonic integrated waveguide, Optics Letters, 43(6), p.1403-1406 doi:10.1364/OL.43.001403 (2018)  Download this Publication (1.5MB).
  14. 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).
  15. A. Dhakal, P.C. Wuytens, A. Raza, N. Le Thomas, R. Baets, Silicon Nitride Background in Nanophotonic Waveguide Enhanced Raman Spectroscopy, Materials, 10(140), doi:10.3390/ma10020140 (2017)  Download this Publication (1.6MB).
  16. A. Dhakal, F. Peyskens, S. Clemmen, A. Raza, P.C. Wuytens, H. Zhao, N. Le Thomas, R. Baets, Single mode waveguide platform for spontaneous and surface-enhanced on-chip Raman spectroscopy, Interface Focus (invited), 6(4), United Kingdom, p.article 20160015 doi:10.1098/rsfs.2016.0015 (2016).
  17. A. Dhakal, A. Raza, F. Peyskens, A. Subramanian, S. Clemmen, N. Le Thomas, R. Baets, Efficiency of evanescent excitation and collection of spontaneous Raman scattering near high index contrast channel waveguides, Optics express, 23(21), p.27391-27404 doi:10.1364/OE.23.027391 (2015)  Download this Publication (3MB).
      International Conferences

    1. N. Turk, A. Raza, P.C. Wuytens, H. Demol, M. van Daele, C. Detavernier, A. Skirtach, K. Gevaert, R. Baets, Waveguide-based Detection of Protease Activity using Surface-Enhanced Raman Spectroscopy, Frontiers in Optics, United States, (2020).
    2. Michiel Van Daele, Matthew BE Griffiths, A. Raza, Matthias M Minjauw, Eduardo Solano, Ji-Yu Feng, Ranjith K Ramachandran, S. Clemmen, R. Baets, Seán T Barry, Christophe Detavernier, Jolien Dendooven, Near Room Temperature PE-ALD of Nanostructured Gold for Enhanced Raman Scattering, ECS Meeting Abstracts, MA2019-02, doi:10.1149/ma2019-02/24/1156 (2019).
    3. M. Van Daele, M.B. E. Griffiths, A. Raza, M.M. Minjauw, S.T. Barry, R. Baets, C. Detavernier, J. Dendooven, Near room temperature plasma enhanced atomic layer deposition of gold metal, accepted for publication in EuroCVD 22 - Baltic ALD, Luxembourg,  (to be published).
    4. H. Zhao, A. Raza, B. Baumgartner, S. Clemmen, B. Lendl, A. Skirtach, R. Baets, Waveguide-Enhanced Raman Spectroscopy Using a Mesoporous Silica Sorbent Layer for Volatile Organic Compound (VOC) Sensing, Conference on Lasers and Electro-Optics (CLEO), United States, p.paper STh1F.7 (2 pages) doi:10.1364/CLEO_SI.2019.STh1F.7 (2019)  Download this Publication (1.6MB).
    5. A. Raza, S. Clemmen, M. Van Daele, J. Dendooven, M.B. E. Griffiths, S.T. Barry, A. Skirtach, C. Detavernier, R. Baets, On-chip surface enhanced Raman spectroscopy using ALD grown plasmonic nanotrenches integrated with a silicon nitride slot waveguide, European Conference on Integrated Optics (ECIO 2019), 21, Belgium, p.paper T.B1.3 (2019)  Download this Publication (1.4MB).
    6. Z. Liu, H. Zhao, A. Raza, N. Le Thomas, R. Baets, On the Performance of Tantalum Pentoxide and Silicon Nitride Slot Waveguides for On-Chip Raman Spectroscopy, European Conference on Integrated Optics, Belgium, p.paper W.Po1.26 (3 pages) (2019)  Download this Publication (1.4MB).
    7. A. Raza, S. Clemmen, M. V. Daele, P.C. Wuytens, J. Dendooven, C. Detavernier, R. Baets, The comparison of on-chip SERS substrates: Nanoplasmonic bowtie antenna vs metal slot waveguide, Proceedings of the 23rd Annual Symposium of the IEEE Photonics Benelux Chapter, Belgium, (2018)  Download this Publication (408KB).
    8. N. Turk, A. Raza, P.C. Wuytens, H. Demol, A. Skirtach, K. Gevaert, R. Baets, Towards SERS-based on-chip detection of protease activity using nanoplasmonic slot waveguides, Proceedings of the 23rd Annual Symposium of the IEEE Photonics Benelux Chapter, Belgium, (2018).
    9. A. Raza, S. Clemmen, M. de Goede, R. Ali, P. Hua, S. M. Garcia-Blanco, S. Honkanen, J. S. Wilkinson, R. Baets, The performance of High-Index-Contrast Photonics Platforms for On-Chip Raman Spectroscopy, European Conference on Integrated Optics (ECIO, Spain, p.35-37 (2018)  Download this Publication (195KB).
    10. A. Raza, J. Losada, S. Clemmen, R. Baets, A. Griol, A. Martinez, Surface enhanced Raman spectroscopy via isolated plasmonic nanoantennas integrated on silicon nitride waveguides, European Conference on Integrated Optics (ECIO, Spain, p.104-106 (2018).
    11. A. Raza, M. Van Daele, P.C. Wuytens, J. Dendooven, C. Detavernier, S. Clemmen, R. Baets, E-beam-lithography free plasmonic slot waveguides for on-chip Raman spectroscopy, CLEO 2018, United States, p.paper SW3L.6 doi:10.1364/CLEO_SI.2018.SW3L.6 (2018).
    12. H. Zhao, S. Clemmen, A. Raza, R. Baets, Demonstration of Stimulated Raman Scattering on a Silicon Nitride Photonic Integrated Waveguide, Conference on Lasers and Electro-Optics (CLEO 2018), United States, doi:10.1364/CLEO_SI.2018.SM1B.3 (2018)  Download this Publication (2.1MB).
    13. N. Le Thomas, A. Raza, R. Baets, Thermo-refractive noise at high frequency: beyond the conventional model, CLEO 2018, United States, p.paper SW3L.5 (2 pages) doi:10.1364/cleo_si.2018.sw3l.5 (2018)  Download this Publication (330KB).
    14. N. Turk, P.C. Wuytens, A. Raza, A. Skirtach, R. Baets, Organic Adhesion Layer for an Increased Waveguide-Excited Surface-Enhanced Raman Signal, Frontiers in Optics, United States, p.paper JW3A.82 (2 pages) doi:10.1364/fio.2017.jw3a.82 (2017)  Download this Publication (615KB).
    15. A. Raza, F. Peyskens, P.C. Wuytens, S. Clemmen, P. V. Dorpe, R. Baets, Detection of Surface-enhanced Raman Signals from a Single Nanoplasmonic Antenna Integrated on a Single Mode Waveguide , CLEO: Science and Innovations,, United States, p.paper SM.4D.6 doi:10.1364/cleo_si.2017.sm4d.6 (2017)  Download this Publication (559KB).
    16. A. Raza, P.C. Wuytens, F. Peyskens, S. Clemmen, P. V. Dorpe, R. Baets, On-chip Enhanced Raman spectroscopy using metal slot waveguide, European Conference on Integrated Optics (ECIO), 19(T7.4), Netherlands, (2017).
    17. S. Clemmen, A. Raza, A. Dhakal, F. Peyskens, A. Subramanian, P, Van Dorpe, P.C. Wuytens, H. Zhao, E.M.P. Ryckeboer, S. Severi, N. Le Thomas, R. Baets, Spectroscopic sensing with silicon nitride photonic integrated circuits, Photonics West 2017, Proc. SPIE 10106, Integrated Optics: Devices, Materials, and Technologies XXI (invited), United States, p.101060T doi:10.1117/12.2256526 (2017)  Download this Publication (1.6MB).
    18. A. Raza, F. Peyskens, S. Clemmen, R. Baets, Towards Single Antenna On-Chip Surface Enhanced Raman Spectroscopy: Arch Dipole Antenna, The 7th International Conference on Metamaterials, Photonic Cyrstals and Plasmonics (META'16), 7, Spain, p.1196-1197 (2016)  Download this Publication (480KB).
    19. A. Dhakal, A. Raza, P.C. Wuytens, F. Peyskens, A. Skirtach, R. Baets, Lab-on-a-chip Raman sensors outperforming Raman microscopes, CLEO, United States, p.paper SM2O.3 doi:10.1364/cleo_si.2016.sm2o.3 (2016).
        National Conferences

      1. P.C. Wuytens, A. Raza, H. Zhao, N. Turk, F. Peyskens, X. Nie, A. Dhakal, E.M.P. Ryckeboer, S. Clemmen, N. Le Thomas, R. Baets, On-chip Raman Spectroscopy, FEA Research Syposium 2017, Belgium, (2017)  Download this Publication (5MB).
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