Surface plasmon polaritons associated with light-nanoparticle interactions can result in dramatic enhancement of electromagnetic fields near and in the gaps between the particles, which can have a large effect on the sintering of these nanoparticles. For example, the plasmonic field enhancement within nanoparticle assemblies is affected by the particle size, spacing, interlayer distance, and light source properties. Computational analysis of plasmonic effects in three-dimensional (3D) nanoparticle packings are presented herein using 532 nm plane wave light. This analysis provides insight into the particle interactions both within and between adjacent layers for multilayer nanoparticle packings. Electric field enhancements up to 400-fold for transverse magnetic (TM) or X-polarized light and 26-fold for transverse electric (TE) or Y-polarized light are observed. It is observed that the thermo-optical properties of the nanoparticle packings change nonlinearly between 0 and 10 nm gap spacing due to the strong and nonlocal near-field interaction between the particles for TM polarized light, but this relationship is linear for TE polarized light. These studies help provide a foundation for understanding micro/nanoscale heating and heat transport for Cu nanoparticle packings under 532 nm light under different polarization for the photonic sintering of nanoparticle assemblies.
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December 2017
Research-Article
Effect of Substrate and Nanoparticle Spacing on Plasmonic Enhancement in Three-Dimensional Nanoparticle Structures
Anil Yuksel,
Anil Yuksel
Department of Mechanical Engineering,
The University of Texas at Austin,
Austin, TX 78712
e-mail: anil.yuksel@utexas.edu
The University of Texas at Austin,
Austin, TX 78712
e-mail: anil.yuksel@utexas.edu
Search for other works by this author on:
Edward T. Yu,
Edward T. Yu
Microelectronics Research Center,
Department of Electrical and
Computer Engineering,
The University of Texas at Austin,
Austin, TX 78712
Department of Electrical and
Computer Engineering,
The University of Texas at Austin,
Austin, TX 78712
Search for other works by this author on:
Jayathi Murthy,
Jayathi Murthy
Henry Samueli School of Engineering and
Applied Science,
University of California, Los Angeles,
Los Angeles, CA 90095
Applied Science,
University of California, Los Angeles,
Los Angeles, CA 90095
Search for other works by this author on:
Michael Cullinan
Michael Cullinan
Department of Mechanical Engineering,
The University of Texas at Austin,
Austin, TX 78712
The University of Texas at Austin,
Austin, TX 78712
Search for other works by this author on:
Anil Yuksel
Department of Mechanical Engineering,
The University of Texas at Austin,
Austin, TX 78712
e-mail: anil.yuksel@utexas.edu
The University of Texas at Austin,
Austin, TX 78712
e-mail: anil.yuksel@utexas.edu
Edward T. Yu
Microelectronics Research Center,
Department of Electrical and
Computer Engineering,
The University of Texas at Austin,
Austin, TX 78712
Department of Electrical and
Computer Engineering,
The University of Texas at Austin,
Austin, TX 78712
Jayathi Murthy
Henry Samueli School of Engineering and
Applied Science,
University of California, Los Angeles,
Los Angeles, CA 90095
Applied Science,
University of California, Los Angeles,
Los Angeles, CA 90095
Michael Cullinan
Department of Mechanical Engineering,
The University of Texas at Austin,
Austin, TX 78712
The University of Texas at Austin,
Austin, TX 78712
Contributed by the Manufacturing Engineering Division of ASME for publication in the JOURNAL OF MICRO- AND NANO-MANUFACTURING. Manuscript received June 16, 2017; final manuscript received August 18, 2017; published online September 27, 2017. Assoc. Editor: Yayue Pan.
J. Micro Nano-Manuf. Dec 2017, 5(4): 040903 (9 pages)
Published Online: September 27, 2017
Article history
Received:
June 16, 2017
Revised:
August 18, 2017
Citation
Yuksel, A., Yu, E. T., Murthy, J., and Cullinan, M. (September 27, 2017). "Effect of Substrate and Nanoparticle Spacing on Plasmonic Enhancement in Three-Dimensional Nanoparticle Structures." ASME. J. Micro Nano-Manuf. December 2017; 5(4): 040903. https://doi.org/10.1115/1.4037770
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