ArticleScience advances2024
Unzipping hBN with ultrashort mid-infrared pulses.
Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Modulating Roughness and Ripple Dynamics in Hexagonal Boron Nitride via Defect Engineering.The journal of physical chemistry. C, Nanomaterials and interfaces · 2026Article
- Curved graphite precursors enable cubic-hexagonal diamond heterostructures with unprecedented toughness-hardness synergy.Science advances · 2025Article
- New opportunities for creating quantum states of light and matter with intense laser fields.Nanophotonics (Berlin, Germany) · 2025Article
- Highly Tunable Moiré Superlattice Potentials in Twisted Hexagonal Boron Nitrides.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
Corrections and comments
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Authors and funding
14 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Manipulating the nanostructure of materials is critical for numerous applications in electronics, magnetics, and photonics. However, conventional methods such as lithography and laser writing require cleanroom facilities or leave residue. We describe an approach to creating atomically sharp line defects in hexagonal boron nitride (hBN) at room temperature by direct optical phonon excitation with a mid-infrared pulsed laser from free space. We term this phenomenon "unzipping" to describe the rapid formation and growth of a crack tens of nanometers wide from a point within the laser-driven region. Formation of these features is attributed to the large atomic displacement and high local bond strain produced by strongly driving the crystal at a natural resonance. This process occurs only via coherent phonon excitation and is highly sensitive to the relative orientation of the crystal axes and the laser polarization. Its cleanliness, directionality, and sharpness enable applications such as polariton cavities, phonon-wave coupling, and in situ flake cleaving.
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Registered trials
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