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Dr. ir. Abdoulghafar Omari  (Doctoral Researcher)

This person worked in the group from 2010 till 2014.

Research Area: Nonlinear quantum dot SOI hybrid waveguide based photonic components
Promotor: Dries Van Thourhout
PhD Thesis: Abdoulghafar Omari, Optical Properties of Colloidal Quantum Dots integrated on Silicon-on-Isolator Waveguides, 11/2014

Specific Research Topics

Publications (16)

    International Journals

  1. A. Omari, W. Xie, P. Geiregat, D. Van Thourhout, Z. Hens, Modeling the optical properties of low-cost colloidal quantum dot functionalized strip SOI waveguides, Journal of Selected Topics in Quantum Electronics, 99, doi:10.1109/JSTQE.2014.2304180 (2013).
  2. A. Omari, P. Geiregat, D. Van Thourhout, Z. Hens, Light absorption in hybrid silicon-on-insulator/quantum dot waveguides, Optics Express, 21(20), p.23272-23285 doi:10.1364/OE.21.023272 (2013)  Download this Publication (1.4MB).
  3. S. Rodriguez, O. Janssen, G. Lozano, A. Omari, Z. Hens, J. G. Rivas, Near-field resonance at far-field induced transparency in diffractive arrays of plasmonic nanorods, Optics Letters, 38(8), p.1238-1240 doi:10.1364/ol.38.001238 (2013)  Download this Publication (465KB).
  4. A. Omari, I. Moreels, F. Masia, W. Langbein, P. Borri, D. Van Thourhout, P. Kockaert, Z. Hens, Role of interband and photoinduced absorption in the nonlinear refraction and absorption of resonantly excited PbS quantum dots around 1550 nm, Physical Review B, 85(115318), doi:10.1103/PhysRevB.85.115318 (2012)  Download this Publication (770KB).
      International Conferences

    1. Z. Hens, A. Omari, P. Geiregat, D. Van Thourhout, Optical Properties of SOI Waveguides Functionalized with Close-Packed Quantum Dot Films, 15th International Conference on Transparent Optical Networks (ICTON 2013), Spain, p.paper We.D6.2 doi:10.1109/icton.2013.6603021 (2013)  Download this Publication (1.7MB).
    2. P. Geiregat, A. Omari, Yolanda Justo, D. Van Thourhout, Zeger Hens, Absorption Enhancement in 2D Nanocrystal Superlattices through Near-Field Dipolar Coupling: A Novel Optical Phenomenon at the Nanoscale, Laser Science to Photonics Applications (CLEO 2013), United States, p.paper QTu1A.7 doi:10.1364/CLEO_QELS.2013.QTu1A.7 (2013)  Download this Publication (147KB).
    3. A. Omari, P. Geiregat, D. Van Thourhout, Z. Hens, Assessing colloidal quantum dot optical properties through free standing layers on photonic waveguides, EMRS 2013 Spring & Bilateral, (2013).
    4. A. Omari, P. Geiregat, D. Van Thourhout, Z. Hens, Modelling colloidal quantum dots on SOI photonic waveguides, EMRS 2013 Spring & Bilateral, (2013).
    5. A. Omari, P. Geiregat, D. Van Thourhout, Z. Hens, Probing the optical constants at the nanoscale of colloidal prepared films through optical waveguides., NWO Scientific meeting on Chemistry related to Physics & Material Sciences, Netherlands, (2013).
    6. A. Omari, H. Shinchi, P. Geiregat, D. Van Thourhout, Z. Hens, Characterisation of PbS/CdS Qdot absorption on SOI waveguides, Poceedings Symposium IEEE Photonics Society Benelux Chapter, 2012, Mons , Belgium, p.295-298 (2012)  Download this Publication (463KB).
    7. S. Rodriguez, O.T.A. Janssen , G. Lozano , A. Omari, Z. Hens, J. Gomez Rivas, Near Field Resonance at Far Field Anti-resonance: Plasmonically Enhanced Light Emission with Minimum Scattering Nanoantennas., Gordon Research Conference, Waterville, Maine, United States, (2012).
    8. A. Omari, I. Moreels, F. Masia, W. Langbein, D. Van Thourhout, P. Kockaert, Z. Hens, Nonlinear optical properties due to inter and intraband transitions in PbS quantum dots, 7th International Conference on Quantum Dots, United States, (2012)  Download this Publication (254KB).
    9. S. Rodriguez, O. Janssen, G. Lozano, A. Omari, J. Gomez Rivas, Diffractively Induced Transparency: Near Field Resonance at Far Field Anti-resonance., Materials Research Society - Spring Meeting, San Francisco, USA, (2012).
    10. A. Omari, I.Moreels, P. Kockaert, F. Masia, W. Langbein, P. Borri, D. Van Thourhout, Z. Hens, Nonlinear Optical properties of PbS quantum dots, EMRS 2011 Spring & Bilateral, (2011).
    11. A. Omari, I.Moreels, P. Kockaert, D. Van Thourhout, Z. Hens, Nonlinear optical characterization of PbS nanocrystals, NWO Scientific meeting on Chemistry related to Physics & Material Sciences, Veldhoven, The Netherlands, (2011).
        National Conferences

      1. A. Omari, Optical nonlinearities of PbS quantum dots, phD symposium, (2010).
      Click here for a printable publication list.

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