Photonics Research Group Home
Ghent University People
About People Research Publications Education
 IMEC
intern

 


Back to list

Ir. Ashim Dhakal 

This person is no longer working in this group.

Affiliation: Ghent University - IMEC
Department of Information Technology (INTEC)
Address: Technologiepark Zwijnaarde 15
9052 Ghent
Belgium
Office: iGent Tower, Office 150.011
Phone: +32-9-264 3342
Fax: +32-9-264 3593
E-mail: ashim.dhakal@ugent.be
Research Area: Visible Light Bio-spectroscopy. Lab-On-a-Chip Raman Spectroscopy.
PhD Thesis: Ashim Dhakal, Nanofotonische golfgeleiderversterkte Ramanspectroscopie, Nanophotonic Waveguide Enhanced Raman Spectroscopy, 9/2016
AshimDhakal
Ashim is a highlander from Phutung en route the famous Langtang national park, Nepal. He joined EU’s Erasmus Mundus Masters in Photonics program in 2009 and graduated jointly from UGent, VUBrusseles, Belgium and USt.Andrews, HWU, Scotland in 2011. Since 2011 he is working in PRG, INTEC, UGent, developing Silicon Nitride photonics platform and utilizing the technology for on-chip Raman spectroscopy.

Specific Research Topics

Publications (35)

    International Journals

  1. A. Dhakal, P.C. Wuytens, A. Raza, N. Le Thomas, R. Baets, Silicon Nitride Background in Nanophotonic Waveguide Enhanced Raman Spectroscopy, Materials, 10(140), (2017)  Download this Publication (1.6MB).
  2. A. Dhakal, P.C. Wuytens, F. Peyskens, K. Jans, N. Le Thomas, R. Baets, Nanophotonic waveguide enhanced Raman spectroscopy of biological submonolayers, ACS Photonics, 3(12), p.2141-2149 (2016).
  3. 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 (2016).
  4. F. Peyskens, A. Dhakal, P. Van Dorpe, N. Le Thomas, R. Baets, Surface Enhanced Raman Spectroscopy Using a Single Mode Nanophotonic-Plasmonic Platform, ACS Photonics, 3(1), p.102-108 (2016).
  5. 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 (2015)  Download this Publication (3MB).
  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).
  7. H. Zhao, B. Kuyken, S. Clemmen, F. Leo, A. Subramanian, A. Dhakal, P. Helin, S. Simone, E. Brainis, G. Roelkens, R. Baets, Visible-to-near-infrared octave spanning suprcontinuum generation in a silicon nitride waveguide, Optics Letters, 40(10), United States, p.2177-2180 (2015)  Download this Publication (510KB).
  8. F. Peyskens, A. Subramanian, P. Neutens, A. Dhakal, P. Van Dorpe, N. Le Thomas, R. Baets, Bright and dark plasmon resonances of nanoplasmonic antennas evanescently coupled with a silicon nitride waveguide, Optics Express, 23(3), p.3088-3101 (2015)  Download this Publication (1.3MB).
  9. A. Dhakal, A. Subramanian, P.C. Wuytens, F. Peyskens, N. Le Thomas, R. Baets, Evanescent excitation and collection of spontaneous Raman spectra using silicon nitride nanophotonic waveguides, Optics Letters, 39(13), p.4025-4028 (2014).
  10. A. Subramanian, P. Neutens, A. Dhakal, R. Jansen, T. Claes, X. Rottenberg, F. Peyskens, S. Selvaraja, P. Helin, B. Du Bois, K. Leyssens, S. Severi, P. Deshpande, R. Baets, P. Van Dorpe, Low-loss singlemode PECVD silicon nitride photonic wire waveguides for 532-900 nm wavelength window fabricated within a CMOS pilot line, IEEE Photonics Journal, 5(6), p.2202809 (2013)  Download this Publication (683KB).
  11. A. Subramanian, S. Selvaraja, P. Verheyen, A. Dhakal, K. Komorowska, R. Baets, Near infrared grating couplers for silicon nitride photonic wires, IEEE Photonics Technology Letters, 24(19), p.1700-1703 (2012)  Download this Publication (411KB).
      International Conferences

    1. 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, Proc. SPIE 10106, Integrated Optics: Devices, Materials, and Technologies XXI (invited), United States, p.101060T (2017)  Download this Publication (1.6MB).
    2. A. Dhakal, P.C. Wuytens, F. Peyskens, A. Skirtach, N. Le Thomas, R. Baets, Microscope-less Lab-on-a-chip Raman Spectroscopy of Cell-membranes, Photonics Conference (IPC2016), United States, p.144-145 (2016)  Download this Publication (236KB).
    3. F. Peyskens, A. Dhakal, P. Van Dorpe, N. Le Thomas, R. Baets, Hybrid Single Mode Nanophotonic-Plasmonic Waveguides for On-Chip Surface Enhanced Raman Spectroscopy, The 7th International Conference on Metamaterials, Photonic Cyrstals and Plasmonics (META'16), Spain, p.424-425 (2016)  Download this Publication (471KB).
    4. 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 (2016).
    5. F. Peyskens, A. Dhakal, P. Van Dorpe, N. Le Thomas, R. Baets, Surface Enhanced Raman Spectroscopy on Single Mode Nanophotonic-Plasmonic Waveguides, CLEO 2016, (2016)  Download this Publication (786KB).
    6. A. Dhakal, P.C. Wuytens, F. Peyskens, A. Subramanian, A. Skirtach, N. Le Thomas, R. Baets, Nanophotonic Lab-On-A-Chip Raman Sensors: a Sensitivity Comparison with Confocal Raman Microscope, BioPhotonics 2015, Italy, p.Th6.3 (2015)  Download this Publication (433KB).
    7. S. Clemmen, H. Zhao, F. Peyskens, A. Dhakal, P.C. Wuytens, A. Subramanian, N. Le Thomas, R. Baets, Coherent anti-Stokes Raman spectroscopy on chip, 28th IEEE Photonics Conference (IPC 2015) (invited), United States, p.623 (2015).
    8. S. Clemmen, H. Zhao, F. Peyskens, A. Dhakal, P.C. Wuytens, A. Subramanian, N. Le Thomas, R. Baets, Coherent anti-Stokes Raman spectroscopy on chip, 28th IEEE Photonics Conference (IPC 2015), United States, p.623-624 (2015)  Download this Publication (169KB).
    9. D. Delbeke, A. Subramanian, P. Cardile, W. Woestenborghs, A. Ruocco, J.W. Hoste, D. Martens, A. Dhakal, P. Bienstman, G. Roelkens, N. Le Thomas, R. Baets, Silicon photonics for on-chip spectrophotometry, 12th International Conference on GPF (invited), United States, p.FC1 (2015)  Download this Publication (897KB).
    10. A. Dhakal, F. Peyskens, A. Subramanian, N. Le Thomas, R. Baets, Enhanced Spontaneous Raman Signal Collected Evanescently by Silicon Nitride Slot Waveguides, CLEO: 2015 - Laser Science to Photonic Applications, United States, p.paper STh4H.3 (2015).
    11. R. Baets, A. Subramanian, A. Dhakal, F. Peyskens, P.C. Wuytens, E.M.P. Ryckeboer, G. Roelkens, N. Le Thomas, Spectroscopic sensing enabled by silicon photonics, Asia Communications and Photonics Conference (ACP) (invited), China, (2014)  Download this Publication (678KB).
    12. R. Baets, A. Dhakal, F. Peyskens, P.C. Wuytens, A. Skirtach, N. Le Thomas, A. Subramanian, Resonant enhancement mechanisms in lab-on-chip raman spectroscopy on a silicon nitride waveguide platform, IEEE Photonics Conference 2014 (IPC) (invited), United States, p.500-501 (2014)  Download this Publication (1.2MB).
    13. A. Dhakal, P.C. Wuytens, F. Peyskens, A. Subramanian, N. Le Thomas, R. Baets, Evnascent Raman spectroscopy using photonic waveguides, International Conference on raman Spectroscopy- ICORS 2014, Germany, p.WeA-O-006 (2014)  Download this Publication (269KB).
    14. F. Peyskens, A. Subramanian, P. Neutens, A. Dhakal, P.C. Wuytens, P. Van Dorpe, N. Le Thomas, R. Baets, Enhancement of Raman scattering efficiency by on-chip nanoplasmonic antennas, Surface-Enhanced Spectroscopies 2014 conference, Germany, (2014).
    15. A. Dhakal, P.C. Wuytens, F. Peyskens, A. Subramanian, N. Le Thomas, R. Baets, Silicon-nitride waveguides for on-chip Raman spectroscopy, SPIE Photonics Europe 14, (2014)  Download this Publication (567KB).
    16. P. Neutens, A. Subramanian, M. Ul Hassan, C. Chen, R. Jansen, T. Claes, X. Rottenberg, B. Du Bois, K. Leyssens, P. Helin, S. Severi, A. Dhakal, F. Peyskens, L. Lagae, P. Deshpande, R. Baets, P. Van Dorpe, Characterization of PECVD silicon nitride photonic components at 532 and 900 nm wavelength, 4th Conference on Silicon Photonics and Photonic Integrated Circuits, Belgium, p.article 91331F ( 6 pages) (2014)  Download this Publication (561KB).
    17. A. Dhakal, P.C. Wuytens, F. Peyskens, A. Subramanian, N. Le Thomas, R. Baets, Raman spectroscopy using photonic waveguides, IPS Benelux 2013, Netherlands, (2013)  Download this Publication (5.5MB).
    18. N. Le Thomas, A. Dhakal, F. Peyskens, A. Subramanian, T. Claes, K. De Vos, E.M.P. Ryckeboer, R. Bockstaele, P. Bienstman, R. Baets, Biological sensing with integrated silicon and silicon nitride photonics, The 2nd BioPhotonics Conference (invited), Taiwan, p.28-29 (2013)  Download this Publication (296KB).
    19. A. Dhakal, F. Peyskens, A. Subramanian, N. Le Thomas, R. Baets, Enhancement of light absorption, scattering and emission in high index contrast waveguides, OSA- Advanced Photonics Congress, Optical Sensors, United States, p.ST2B.5  (2013)  Download this Publication (1.2MB).
    20. F. Peyskens, A. Subramanian, A. Dhakal, N. Le Thomas, R. Baets, Enhancement of Raman Scattering Efficiency by a Metallic Nano-antenna on Top of a High Index Contrast Waveguide, CLEO 2013, United States, p.paper CM2F.5.pdf (2013)  Download this Publication (313KB).
    21. R. Baets, A. Subramanian, A. Dhakal, S. Selvaraja, K. Komorowska, F. Peyskens, E.M.P. Ryckeboer, N.A Yebo, G. Roelkens, N. Le Thomas, Spectroscopy-on-chip applications of silicon photonics, Photonics West (invited), 8627(01), United States, p.86270I-1 - 86270I-10 (2013)  Download this Publication (1MB).
    22. A. Subramanian, S. Selvaraja, A. Dhakal, K. Komorowska, R. Baets, Grating couplers for Si3N4 waveguides at 900 nm, 16th European Conference on Integrated Optics (ECIO 2012), Spain, p.paper 182 (2012)  Download this Publication (328KB).
    23. A. Dhakal, A. Subramanian, N. Le Thomas, R. Baets, The role of index contrast in the efficiency of absorption and emission of a luminescent particle near a slab waveguide, 16th European Conference on Integrated Optics (ECIO 2012), Spain, p.paper 131 (2012)  Download this Publication (360KB).
        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).
      Click here for a printable publication list.

      Back to list