Molecular photodissociation enabled by ultrafast plasmon decay

Area of Science:

• Physical Chemistry
• Materials Science
• Nanotechnology

Background:

• Photodissociation typically requires high-energy photons.
• Photostable molecules resist breaking down with light.
• Nanoparticle plasmons offer unique light-matter interactions.

Purpose of the Study:

• To enable photodissociation of normally photostable molecules.
• To utilize nanoparticle plasmon coupling for molecular manipulation.
• To investigate an ultrafast decay channel for molecules.

Main Methods:

• Coupling molecules to nanoparticle plasmons.
• Simulating the Lindblad master equation.
• Analyzing Raman-like energy transfer processes.

Main Results:

• Demonstrated photodissociation of a molecule via plasmon coupling.
• Identified an ultrafast decay channel for molecules.
• Showcased energy conversion into vibrational energy on the molecular ground state.

Conclusions:

• Plasmon-induced vibrational energy can lead to ground-state photodissociation.
• This strategy offers a novel route for molecular control.
• Numerical simulations confirm the feasibility of the proposed mechanism.