Design of plasmonic grating structures towards optimum signal discrimination for biosensing applications

Optics Express
Uwe BogTimo Mappes

Abstract

Sensors based on surface plasmon resonances (SPRs) have proven themselves as promising devices for molecular investigations - still there is potential to determine the geometrical parameter set for optimal sensing performance. Here we propose a comprehensive design rule for one-dimensional plasmonic grating structures. We present an analytical approach, which allows for estimation of the grating parameters for best SPR coupling efficiency for any geometry and design wavelength. On the example of sinusoidal gratings, we expand this solution and discuss numerically and experimentally, how the grating modulation depth can be refined to achieve optimal signal resolution. Finally, we propose a benchmark factor to assess the sensor performance, which can be applied to any sensing scheme utilizing resonances, allowing for comparison of different technological platforms.

References

Sep 1, 1996·Physical Review. B, Condensed Matter·W L BarnesJ R Sambles
Jan 3, 2006·Biosensors & Bioelectronics·Gossett A Campbell, Raj Mutharasan
Jul 7, 2007·Science·Andrea M ArmaniKerry J Vahala
Nov 3, 2007·Optics Letters·Carlos A BarriosR Casquel
Jan 31, 2008·Chemical Reviews·Sergey M Borisov, Otto S Wolfbeis
May 24, 2008·Nature Materials·Jeffrey N AnkerRichard P Van Duyne
Jun 11, 2008·Optics Express·Sudeep Mandal, David Erickson
Jun 19, 2008·Analytica Chimica Acta·Xudong FanYuze Sun
Jul 25, 2009·The Journal of Chemical Physics·M SukharevJ B Ketterson
Oct 14, 2010·Optics Express·Yousef NazirizadehMartina Gerken
Dec 18, 2010·Optics Express·Christoph VannahmeTimo Mappes

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Citations

Jun 6, 2019·Optics Express·Jamal M Ehtaiba, Reuven Gordon
Apr 3, 2019·High-throughput·Andrea PalermoAlexander Nesterov-Mueller

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