Semi-empirical Quantum Optics for Mid-Infrared Molecular Nanophotonics
- URL: http://arxiv.org/abs/2110.07371v1
- Date: Thu, 14 Oct 2021 14:02:19 GMT
- Title: Semi-empirical Quantum Optics for Mid-Infrared Molecular Nanophotonics
- Authors: Johan F. Triana, Mauricio Arias, Jun Nishida, Eric Muller, Roland
Wilcken, Samuel C. Johnson, Aldo Delgado, Markus B. Raschke, Felipe Herrera
- Abstract summary: We develop a semi-empirical quantum optics approach to describe light-matter interaction in systems driven by mid-IR femtosecond laser pulses.
We propose the possibility of transferring the natural anharmonicity of molecular vibrational levels to the resonator near-field in the weak coupling regime.
- Score: 4.418727776163473
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Nanoscale infrared (IR) resonators with sub-diffraction limited mode volumes
and open geometries have emerged as new platforms for implementing cavity
quantum electrodynamics (QED) at room temperature. The use of infrared (IR)
nano-antennas and tip nanoprobes to study strong light-matter coupling of
molecular vibrations with the vacuum field can be exploited for IR quantum
control with nanometer and femtosecond resolution. In order to accelerate the
development of molecule-based quantum nano-photonic devices in the mid-IR, we
develop a generally applicable semi-empirical quantum optics approach to
describe light-matter interaction in systems driven by mid-IR femtosecond laser
pulses. The theory is shown to reproduce recent experiments on the acceleration
of the vibrational relaxation rate in infrared nanostructures, and also provide
physical insights for the implementation of coherent phase rotations of the
near-field using broadband nanotips. We then apply the quantum framework to
develop general tip-design rules for the experimental manipulation of
vibrational strong coupling and Fano interference effects in open infrared
resonators. We finally propose the possibility of transferring the natural
anharmonicity of molecular vibrational levels to the resonator near-field in
the weak coupling regime, to implement intensity-dependent phase shifts of the
coupled system response with strong pulses. Our semi-empirical quantum theory
is equivalent to first-principles techniques based on Maxwell's equations, but
its lower computational cost suggests its use a rapid design tool for the
development of strongly-coupled infrared nanophotonic hardware for applications
ranging from quantum control of materials to quantum information processing.
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