Abstract
FinFET Structure is proposed as a nanophotonic platform to guide and control light. The hybrid plasmonic mode is made to guide in the dielectric layer around the silicon fin (channel). We are able to guide and control both TE and TM modes in the proposed structure which provides improved electrostatic control over the channel where the gate is wrapped around the Fin. By utilizing the gate and drain–source voltages we can control the charge carriers in the channel thereby realizing phase tuning. In addition, a voltage tunable absorption is also reported through the voltage variable imaginary part of the effective index. The proposed device can be well suited for applications in photonic devices at real nanoscales.
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The data sets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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The authors acknowledge project grant from Science and Engineering Research Board (SERB), Government of India and from Council of Scientific and Industrial Research (CSIR).
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The work is supported by Council of Scientific and Industrial Research (CSIR) with grant no. 22(0840)/20/EMR-II and from Science and Engineering Research Board (SERB) with grant no. CRG/2020/000144.
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Saikiran and M. Kumar conceptualized the device and conducted a theoretical analysis. Numerical analysis was carried out by Saikiran, R.D. Mishra, S. Kumar, Aditya and L. Singh and provided partial technical suggestions and help in finalizing the manuscript. M. Kumar guided the entire computation process. Saikiran and M. Kumar conducted the data analysis and wrote the manuscript.
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Kiran, S., Mishra, R.D., Kumar, S. et al. Nano-scale optical guidance and control in finfet like structure. Opt Quant Electron 55, 811 (2023). https://doi.org/10.1007/s11082-023-05057-4
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DOI: https://doi.org/10.1007/s11082-023-05057-4