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Nanophotonic lab-on-a-chip Raman sensors : a sensitivity comparison with confocal Raman microscope

Ashim Dhakal (UGent) , Pieter Wuytens (UGent) , Frédéric Peyskens (UGent) , Ananth Subramanian (UGent) , Andre Skirtach (UGent) , Nicolas Le Thomas (UGent) and Roel Baets (UGent)
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Center for nano- and biophotonics (NB-Photonics)
Abstract
We compare the performance of the nano-photonic waveguide based evanescent Raman sensors and a typical the confocal microscope. For 1 cm long strip silicon nitride waveguides, we theoretically expect more than 500 times higher signal compared to the confocal microscopic systems. The results of our preliminary measurements indicate at least 50 times higher signal. For slotted waveguides, the preliminary measurement result yields about 300 times higher signal compared to confocal microscope while the theoretical figure is more than 2000.
Keywords
Raman spectroscopy, Evanescent sensing, Integrated optics

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Citation

Please use this url to cite or link to this publication:

Chicago
Dhakal, Ashim, Pieter Wuytens, Frédéric Peyskens, Ananth Subramanian, Andre Skirtach, Nicolas Le Thomas, and Roel Baets. 2015. “Nanophotonic Lab-on-a-chip Raman Sensors : a Sensitivity Comparison with Confocal Raman Microscope.” In 2015 International Conference on Biophotonics (BIOPHOTONICS), 35–38. New York, NY, USA: IEEE.
APA
Dhakal, A., Wuytens, P., Peyskens, F., Subramanian, A., Skirtach, A., Le Thomas, N., & Baets, R. (2015). Nanophotonic lab-on-a-chip Raman sensors : a sensitivity comparison with confocal Raman microscope. 2015 International conference on biophotonics (BIOPHOTONICS) (pp. 35–38). Presented at the International conference on Biophotonics (Biophotonics), New York, NY, USA: IEEE.
Vancouver
1.
Dhakal A, Wuytens P, Peyskens F, Subramanian A, Skirtach A, Le Thomas N, et al. Nanophotonic lab-on-a-chip Raman sensors : a sensitivity comparison with confocal Raman microscope. 2015 International conference on biophotonics (BIOPHOTONICS). New York, NY, USA: IEEE; 2015. p. 35–8.
MLA
Dhakal, Ashim, Pieter Wuytens, Frédéric Peyskens, et al. “Nanophotonic Lab-on-a-chip Raman Sensors : a Sensitivity Comparison with Confocal Raman Microscope.” 2015 International Conference on Biophotonics (BIOPHOTONICS). New York, NY, USA: IEEE, 2015. 35–38. Print.
@inproceedings{7064121,
  abstract     = {We compare the performance of the nano-photonic waveguide based evanescent Raman sensors and a typical the confocal microscope. For 1 cm long strip silicon nitride waveguides, we theoretically expect more than 500 times higher signal compared to the confocal microscopic systems. The results of our preliminary measurements indicate at least 50 times higher signal. For slotted waveguides, the preliminary measurement result yields about 300 times higher signal compared to confocal microscope while the theoretical figure is more than 2000.},
  author       = {Dhakal, Ashim and Wuytens, Pieter and Peyskens, Fr{\'e}d{\'e}ric and Subramanian, Ananth and Skirtach, Andre and Le Thomas, Nicolas and Baets, Roel},
  booktitle    = {2015 International conference on biophotonics (BIOPHOTONICS)},
  isbn         = {9781467379267},
  keyword      = {Raman spectroscopy,Evanescent sensing,Integrated optics},
  language     = {eng},
  location     = {Florence, Italy},
  pages        = {35--38},
  publisher    = {IEEE},
  title        = {Nanophotonic lab-on-a-chip Raman sensors : a sensitivity comparison with confocal Raman microscope},
  url          = {http://dx.doi.org/10.1109/BioPhotonics.2015.7304021},
  year         = {2015},
}

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