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28 September 2023 Picoelectrodynamics inside matter
Sathwik Bharadwaj, Vineet Punyamoorty, Todd Van Mechelen, Zubin Jacob
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Proceedings Volume PC12657, Quantum Nanophotonic Materials, Devices, and Systems 2023; PC1265708 (2023) https://doi.org/10.1117/12.2675837
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States
Abstract
The concept of photonic frequency (ω) - momentum (𝑞) dispersion has been extensively studied in artificial dielectric structures such as photonic crystals and metamaterials. However, the ω−𝑞 dispersion of electrodynamic waves hosted in natural materials at the atomistic level is far less explored. Here, we develop an atomistic nonlocal electrodynamic theory of matter by combining the Maxwell Hamiltonian theory of matter with a quantum theory of atomistic polarization. We apply this theory to silicon and discover the existence of atomistic electrodynamic waves. Atomistic electrodynamic waves have sub-nano-meter effective wavelengths in the picoelectrodynamics regime. Further, we show that the atomistic optical conductivity in silicon is highly anisotropic along different momentum directions due to atomistic electronic correlations. Our findings demonstrate that the natural media host variety of yet to be discovered electromagnetic phases of matter and provide a pathway towards the discovery of rich atomic scale light-matter interaction phenomena.
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Sathwik Bharadwaj, Vineet Punyamoorty, Todd Van Mechelen, and Zubin Jacob "Picoelectrodynamics inside matter", Proc. SPIE PC12657, Quantum Nanophotonic Materials, Devices, and Systems 2023, PC1265708 (28 September 2023); https://doi.org/10.1117/12.2675837
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KEYWORDS
Electrodynamics
Quantum physics
Dispersion
Photonic crystals
Quantum matter
Silicon
Quantum metamaterials
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