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Plasmonics Studies for Molecular Scale Optoelectronics

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Recent Advances in Plasmonic Probes

Part of the book series: Lecture Notes in Nanoscale Science and Technology ((LNNST,volume 33))

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Abstract

Molecular scale plasmonics (MSP) is associated with the area of molecular electronics (ME) where the electronic property of molecules is exploited to generate or modulate plasmons at sub-wavelength confinement. The MSP and ME both occur at diffraction-limited regimes which gives an advantage of understanding both optical and quantum mechanical properties simultaneously. Thus, this emerging field could promise prospective applications in the field of ultrafast information processing, computation, nonlinear and ultrahigh-resolution electronic display, optoelectronic devices, etc. The combination of ME and MSP opens a window to understand the interaction of electromagnetic waves at metal-molecule interface with the help of recently emerging molecular electronic characterization tools in sub-wavelength range. Here, we discuss molecular scale plasmonics with the enunciation of a basic understanding of plasmonics. In addition to these, we systematically discuss various methods of plasmon excitation and detection, using the quantum mechanical models, because classical electrodynamics fails to illustrate the electromagnetic coupling in the sub-nanogaps formed by molecular junctions. Also, we have showcased numerous examples of recent advances in molecular electronic plasmonic including sub-nanometer air/vacuum and molecular gap quantum plasmonic systems. Finally, we conclude this chapter by mentioning the prospects and various challenges in terms of making efficient characterization techniques or better models to explain MSP.

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  1. Farhana Yasmin Rahaman and Anas Akhtar contributed equally with all other contributors.

Authors and Affiliations

  1. Department of Physics, Indian Institute of Science, Bangalore, Karnataka, India

    Farhana Yasmin Rahaman & Abhijit Chandra Roy

  2. Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, Karnataka, India

    Anas Akhtar

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  1. Farhana Yasmin Rahaman
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  1. Department of Physics, Applied Optics and Photonics Lab, Tezpur University, Tezpur, Assam, India

    Rajib Biswas

  2. Department of Biophysics Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India

    Nirmal Mazumder

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Rahaman, F.Y., Akhtar, A., Roy, A.C. (2022). Plasmonics Studies for Molecular Scale Optoelectronics. In: Biswas, R., Mazumder, N. (eds) Recent Advances in Plasmonic Probes. Lecture Notes in Nanoscale Science and Technology, vol 33. Springer, Cham. https://doi.org/10.1007/978-3-030-99491-4_4

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