ArticleNature communications2024
On-chip phonon-enhanced IR near-field detection of molecular vibrations.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Far-Infrared Hyperbolic Phonon-Polaritons in Zirconium Disulfide.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Enhanced Terahertz Photoresponse via Acoustic Plasmon Cavity Resonances in Scalable Graphene.ACS photonics · 2026Article
- Long-Range Mid-Infrared Energy Transfer Mediated by Hyperbolic Phonon Polaritons.Nano letters · 2026Article
- Submicrowatt-driven near-infrared luminescence from perovskite-fluoride quantum-cutting heterostructures for gas sensing.Nature communications · 2026Article
- Integrated optomechanical ultrasonic sensors with nano-Pascal-level sensitivity.Light, science & applications · 2026Article
- Observation of Edge-Confined Acoustic Hyperbolic Polaritons in van der Waals Materials.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Fundamental optical phenomena of strongly anisotropic polaritons at the nanoscale.Nature nanotechnology · 2026Review
- Generalized Surface Conductivity Model for Anisotropic Phonon Polaritons in van der Waals Slabs.Nanophotonics (Berlin, Germany) · 2026Article
- Strongly confined mid-infrared to terahertz phonon polaritons in ultrathin SrTiOScience advances · 2025Article
- AI‑driven photonic noses: from conventional sensors to cloud‑to-edge intelligent microsystems.Microsystems & nanoengineering · 2025Review
- Article
- Real-Space Visualization of Canalized Ray Polaritons in a Single Van der Waals Thin Slab.Nano letters · 2025Article
- On-chip phonon-enhanced IR near-field detection of molecular vibrations.Nature communications · 2024Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
Phonon polaritons - quasiparticles formed by strong coupling of infrared (IR) light with lattice vibrations in polar materials - can be utilized for surface-enhanced infrared absorption (SEIRA) spectroscopy and even for vibrational strong coupling with nanoscale amounts of molecules. Here, we introduce and demonstrate a compact on-chip phononic SEIRA spectroscopy platform, which is based on an h-BN/graphene/h-BN heterostructure on top of a metal split-gate creating a p-n junction in graphene. The metal split-gate concentrates the incident light and launches hyperbolic phonon polaritons (HPhPs) in the heterostructure, which serves simultaneously as SEIRA substrate and room-temperature infrared detector. When thin organic layers are deposited directly on top of the heterostructure, we observe a photocurrent encoding the layer's molecular vibrational fingerprint, which is strongly enhanced compared to that observed in standard far-field absorption spectroscopy. A detailed theoretical analysis supports our results, further predicting an additional sensitivity enhancement as the molecular layers approach deep subwavelength scales. Future on-chip integration of infrared light sources such as quantum cascade lasers or even electrical generation of the HPhPs could lead to fully on-chip phononic SEIRA sensors for molecular and gas sensing.
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Registered trials
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