Near-fields of Butterfly Nanoantennas: A Comparative Simulation and Experimental Study

Authors

  • Saswatee Banerjee Meta, Cork, Ireland
  • Nicolas Marquez Peraca Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA
  • Alexander Franke Meta, Cork, Ireland

DOI:

https://doi.org/10.13052/2024.ACES.J.390206

Keywords:

finite-difference time-domain method, Fischer nanostructures, near-field, resolution, SNOM

Abstract

Optical nanoantennas demonstrate the ability to confine and enhance electromagnetic fields. This ability makes nanoantennas essential tools for high-resolution microscopy. The nanoantenna resonance and response can be tuned by changing their size, shape, and material as well as adjusting the probing conditions, e.g. excitation wavelength. In this paper we simulated the propagation and interaction of visible light with computer generated models of butterfly nanoantenna arrays using the finite-difference time-domain (FDTD) method. The simulations were used to understand and predict the experimental results obtained with scanning near-field microscopy (SNOM) on commercially available samples. Simulation parameters are chosen carefully to reflect the measurement conditions.

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Author Biographies

Saswatee Banerjee, Meta, Cork, Ireland

Saswatee Banerjee is currently working as Research Scientist at Meta Ireland, Cork, Republic of Ireland. Her research interests include optical design, simulation methods and light propagation in nano-optic and photonic components. Before joining Meta, she worked in Japan for 20 years in both industrial R&D and academia.

Nicolas Marquez Peraca, Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA

Nicolas Marquez Peraca is a 5th year Ph.D. Candidate in the Department of Physics and Astronomy at Rice University in Houston, TX, USA. Before coming to Rice in 2018, he was a Guest Researcher for 2 years at the National Institute of Standards and Technology, where he worked on the electric and opto-electronic characterization of multi-junction solar cells. He joined Meta’s Display & Optics team in Cork, Republic of Ireland, in the fall of 2022 as a Research Scientist Intern. His current research interests include ultrafast phenomena in condensed matter physics, THz magneto-spectroscopy of quantum materials, and AR/VR metrology.

Alexander Franke, Meta, Cork, Ireland

Alexander Franke is currently working in the Display & Optics team of Meta in Cork, Republic of Ireland. Prior to joining Meta he worked in academia and R&D at various locations in Germany and USA, including the University of Magdeburg, TU Berlin, North Carolina State University, and the Fraunhofer Institute for Solar Energy Systems in Freiburg, Germany. His research interests are wide spread ranging from crystal growth (epitaxy), optoelectronic devices, photonics, nanostructures, to metrology and especially optical characterization by various spectroscopic methods.

References

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Published

2024-02-29

How to Cite

[1]
S. Banerjee, N. M. Peraca, and A. Franke, “Near-fields of Butterfly Nanoantennas: A Comparative Simulation and Experimental Study”, ACES Journal, vol. 39, no. 02, pp. 130–138, Feb. 2024.

Issue

2024: Vol 39 Iss 2

Section

ACES-Monterey 2023

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