Continuous-Wave, High-Resolution, Ultrabroadband Mid-Infrared Nonlinear Spectroscopy with Tunable Plasmonic Nanocavities

ACS Photonics 2026 Open access

Read full text
Authors: Zhiyuan Xie, Nobuaki Oyamada, Francesco Ciccarello, Valeria Vento, Wen Chen, Christophe Galland
DOI: 10.1021/acsphotonics.6c00123
Cited by: 1
References: 126

Abstract

Vibrational sum- and difference-frequency generation (SFG and DFG) spectroscopy probes the nonlinear response of interfaces at mid-infrared (MIR) wavelengths while detecting upconverted signals in the visible. Recent work has moved from large-area films and colloids to nanoscale structures using dual-resonant plasmonic nanocavities that coconfine light and matter in deep-subwavelength volumes. Here we implement high-resolution (

Fields of Study & Subjects

Spectroscopy and Laser Applications Spectroscopy and Quantum Chemical Studies Plasmonic and Surface Plasmon Research

Publication details

Journal / source
ACS Photonics
Publisher
American Chemical Society (ACS)
Volume
13
Issue
9
Pages
2606–2615
Publication date
23 March 2026
Language
EN