Abstract
Research work at Dr. Anuj Dhawan’s laboratory at IIT Delhi is primarily based on the design and development of nanophotonic and plasmonic devices. Dr. Dhawan’s research group has primarily focused on the design and modeling of plasmonic chemical and biological sensors, optical switches, and photonic waveguides and interconnects. In this paper, firstly research work carried out in Dr. Dhawan’s laboratory on sensor devices based on surface plasmon resonance, localized surface plasmon resonance, and surface-enhanced Raman scattering, is described. Subsequently, the research work being carried out in Dr. Dhawan’s laboratory on fabrication of plasmonic nanostructures and their characterization, is discussed. Finally, EM modeling of optical switching devices—consisting of a plasmonic nanostructure system consisting of an array of gold nanowires separated from an underlying gold film by a vanadium dioxide thin film spacer layer—is discussed.
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References
Doering WE, Nie S (2002) Single-molecule and single-nanoparticle SERS: examining the roles of surface active sites and chemical enhancement. J Phys Chem B 106:311–317
Gupta N, Dhawan A (2018) Bridged-bowtie and Cross bridged-bowtie nanohole arrays as SERS substrates with hotspot tunability and multi-wavelength SERS response. Opt Express 26:17899–17915
Sharma Y, Dhawan A (2016) Plasmonic ‘nano-fingers on nanowires’ as SERS substrates. Opt Lett 41:2085–2088
Agrawal AK, Das A, Dhawan A (2018) Enhanced sensitivity of SPR sensing and imaging using plasmonic nanopillar arrays. In: Proceedings of the IEEE 17th international conference on nanotechnology (IEEE-NANO), Cork, Ireland
Agrawal AK, Yadav S, Dhawan A (2018) Enhanced sensitivity of SPR biological sensor based on nanohole arrays in gold films. In: Proceedings of the IEEE 17th international conference on nanotechnology (IEEE-NANO), Cork, Ireland
Brolo AG, Gordon R, Leathem B, Kavanagh KL (2004) Surface plasmon sensor based on the enhanced light transmission through arrays of nanoholes in gold films. Langmuir 20:4813–4815
Roh S, Chung T, Lee B (2011) Overview of the characteristics of micro- and nano-structured surface plasmon resonance sensors. Sensors 11:1565–1588. https://doi.org/10.3390/s110201565
Kim K, Yoon SJ, Kim D (2006) Nanowire-based enhancement of localized surface plasmon resonance for highly sensitive detection: a theoretical study. Opt Express 14:12419–12431
Acknowledgements
This publication is an outcome of the R&D work undertaken in the project under the Visvesvaraya Ph.D. Scheme of Ministry of Electronics & Information Technology, Government of India, being implemented by Digital India Corporation (formerly Media Lab Asia) as they provided financial support to Ph.D. students and for purchase of some consumables required for this research work.
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Dhawan, A. Design and development of plasmonic and nanophotonic devices. CSIT 7, 161–164 (2019). https://doi.org/10.1007/s40012-019-00226-x
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DOI: https://doi.org/10.1007/s40012-019-00226-x