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SiN biosensors operating in the visible

Research Area: Lab-on-a-chip label-free biosensors

Main Researcher: Daan Martens

SiN is a material system which is still silicon compatible, yet offers the possibility to propagate light in the visible wavelength region. Contrary to near-IR applications, which require expensive light sources and detectors, in the visible these components are extremely cheap since they are consumer-electronics products. Coupled with on-chip spectrum analysers, this has the potential to result in extremely cheap readout equipment, without sacrificing any performance.

Other people involved:


Evanescent excitation and collection of spontaneous Raman spectra using silicon nitride nanophotonic waveguides
Evanescent excitation and collection of spontaneous Raman spectra using silicon nitride nanophotonic waveguides

PhD thesises


    International Journals

  1. F. Peyskens, P.C. Wuytens, A. Raza, VAN DORPE, Pol, R. Baets, Waveguide excitation and collection of surface-enhanced Raman scattering from a single plasmonic antenna, Nanophotonics, 7(7), p.12991306 (2018)  Download this Publication (1.1MB).
  2. P.C. Wuytens, A.G. Skirtach, R. Baets, On-Chip Surface-Enhanced Raman Spectroscopy using Nanosphere-Lithography Patterned Antennas on Silicon Nitride Waveguides, Optics Express, 25(11), p.12926-12934 (2017)  Download this Publication (6.3MB).
  3. D. Martens, P. Bienstman, Comparison between Vernier-cascade and MZI as transducer for biosensing with on-chip spectral filter, Nanophotonics 2017, (2017)  Download this Publication (1.2MB).
  4. D. Martens, GENGHUA, Dong, P. Bienstman, Optimized Si3N4 grating couplers for relaxed alignment requirements under flood illumination, Applied Optics, 56(5), p.1286-1290 (2017)  Download this Publication (742KB).
  5. P.C. Wuytens, A. Subramanian, W. H. De Vos, A. G Skirtach, R. Baets, Gold nanodome-patterned microchips for intracellular surface-enhanced Raman spectroscopy, Analyst, 140(24), p.8080-8087 (2015)  Download this Publication (5.7MB).
  6. A. Subramanian, E.M.P. Ryckeboer, A. Dhakal, F. Peyskens, A. Malik, B. Kuyken, H. Zhao, S. Pathak, A. Ruocco, A. De Groote, P.C. Wuytens, D. Martens, F. Leo, W. Xie, U.D. Dave, M. Muneeb, Pol Van Dorpe, Joris Van Campenhout, W. Bogaerts, P. Bienstman, N. Le Thomas, D. Van Thourhout, Zeger Hens, G. Roelkens, R. Baets, Silicon and silicon nitride photonic circuits for spectroscopic sensing on-a-chip , Photonics Research (invited), 5(3), p.B47 (2015)  Download this Publication (1.5MB).
      International Conferences

    1. A. Diaz Tormo , D. Khalenkow, A. G. Skirtach, N. Le Thomas, Study of bacterial inner structures with 4pi Raman microscopy, Conference on Lasers and Electro-Optics (CLEO), United States, (2018)  Download this Publication (905KB).
    2. E.M.P. Ryckeboer, D. Martens, H. D'heer, P. Bienstman, D. Van Thourhout, R. Baets, Optofluidic devices based on Silicon photonics, EOS World of Photonics Congress (invited), (2017).
    3. D. Martens, P. Bienstman, Singh, M, Elamin A A, Jonas F, Gonzalez-Guerrero A B, Lechuga L M, Van Roy W, Vos R, Stassen A, Severi S, Bockstaele R, Becker H, A point-of-care integrated photonic biosensor, Europt[r]ode, Austria, p.OL 7.4 (2016).
    4. D. Martens, A. Stassen, W. Van Roy, P. Bienstman, Novelty low-cost integrated photonic biosensor using broadband source and on-chip spectral filter, IEEE Photonics Society Benelux, Belgium, p.173-176 (2016)  Download this Publication (277KB).
    5. P.C. Wuytens, A. M. Yashchenok, A. Subramanian, R. Baets, A. G. Skirtach, Label-free monitoring of microcapsule-enabled intracellular release using gold-nanoparticle coated microchips , International Conference on Raman Spectroscopy, Germany, p.Mop-HS4-1 (2014).
    6. P.CU Wuytens, A. M. Yashchenok, A. Subramanian, A. G. Skirtach, R. Baets, Gold Nanoparticle Coated Silicon Nitride chips for Intracellular Surface-Enhanced Raman Spectroscopy, CLEO, STh4H.7, United States, (2014)  Download this Publication (217KB).

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