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Article Dans Une Revue Lab on a Chip Année : 2024

Piezoelectric and microfluidic tuning of an infrared cavity for vibrational polariton studies

Résumé

We developed a microfluidic system for vibrational polariton studies, which consists of two microfluidic chips: one for solution mixing and another for tuning an infrared cavity made of a pair of gold mirrors and a PDMS (polydimethylsiloxane) spacer. We show that the cavity of the system can be accurately tuned with either piezoelectric actuators or microflow-induced pressure to result in resonant coupling between a cavity mode and a variational mode of the solution molecules. Acrylonitrile solutions were chosen to prove the concept of vabriational strong coupling (VSC) of a C[triple bond, length as m-dash]N stretching mode with light inside the cavity. We also show that the Rabi splitting energy is linearly proportional to the square root of molecular concentration, thereby proving the relevance and reliability of the system for VSC studies.

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Chimie
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samedi 5 octobre 2024
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Dates et versions

hal-04572532 , version 1 (11-05-2024)

Identifiants

Citer

Wei Wang, Jaime de la Fuente Diez, Nicolas Delsuc, Juan Peng, Riccardo Spezia, et al.. Piezoelectric and microfluidic tuning of an infrared cavity for vibrational polariton studies. Lab on a Chip, 2024, 24 (9), pp.2497-2505. ⟨10.1039/D3LC01101A⟩. ⟨hal-04572532⟩
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