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Review
. 2025 Mar;37(10):e2413748.
doi: 10.1002/adma.202413748. Epub 2025 Jan 31.

Ultrafast Infrared Plasmonics

Yang Luo  1   2 , Zhiyuan Sun  3 , Zhipei Sun  4 , Qing Dai  1   2   5
Affiliations
Review

Ultrafast Infrared Plasmonics

Yang Luo et al. Adv Mater. 2025 Mar.

Abstract

Ultrafast plasmonics represents a cutting-edge frontier in light-matter interactions, providing a unique platform to study electronic interactions and collective motions across femtosecond to picosecond timescales. In the infrared regime, where energy aligns with the rearrangements of low-energy electrons, molecular vibrations, and thermal fluctuations, ultrafast plasmonics can be a powerful tool for revealing ultrafast electronic phase transitions, controlling molecular reactions, and driving subwavelength thermal processes. Here, the evolution of ultrafast infrared plasmonics, discussing the recent progress in their manipulation, detection, and applications is reviewed. The future opportunities, including their potential to probe electronic correlations, investigate intrinsic ultrafast plasmonic interactions, and enable advanced applications in quantum information are highlighted, which may be promoted by multi-physical field integrated ultrafast techniques.

Keywords: electronic correlation; infrared regime; molecular reaction control; nonlinear effect; thermal management; ultrafast plasmonics.

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