A scalable platform for nanometer-scale quantum confinement
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arXiv
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866915929762299904 |
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| author | Spaegele, Christina M. Rezaee, Mehdi Werkmeister, Thomas Lim, Soon Wei Daniel Vaillancourt, Kailyn Park, Joon-Suh Chevalier, Paul Kaminer, Ido Kim, Philip Capasso, Federico Tamagnone, Michele |
| author_facet | Spaegele, Christina M. Rezaee, Mehdi Werkmeister, Thomas Lim, Soon Wei Daniel Vaillancourt, Kailyn Park, Joon-Suh Chevalier, Paul Kaminer, Ido Kim, Philip Capasso, Federico Tamagnone, Michele |
| contents | Overcoming the limitations of current nanofabrication techniques to achieve nanoscale feature sizes is essential for achieving new regimes of light-matter interactions at extreme frequencies and length scales. Here, we demonstrate a scalable nanofabrication platform capable of producing in-plane feature sizes down to 1.75 nm, pushing the boundaries of current top-down nanofabrication techniques. Using precise thickness control of atomic layer deposition (ALD) and employing widely spaced oxide nanofins, we transform conventional ALD into a surface structuring method that produces nanolaminates with sub-10 nm periodicities over large areas. The resulting nanostructures can be used as a one-dimensional gate array to control charge carriers in two-dimensional materials. As an initial demonstration, we integrate the platform with graphene and perform electron transport measurements. In the presence of the gate array enabled by the nanolaminate, we observe satellite Dirac peaks consistent with band-structure modulation, suggestive of quantum-confinement effects. Our platform paves the way for exploring previously inaccessible regimes of nanoscale light-matter interactions, holding significant promise for applications in short wavelength optics, electronics, and polaritonics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_08957 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A scalable platform for nanometer-scale quantum confinement Spaegele, Christina M. Rezaee, Mehdi Werkmeister, Thomas Lim, Soon Wei Daniel Vaillancourt, Kailyn Park, Joon-Suh Chevalier, Paul Kaminer, Ido Kim, Philip Capasso, Federico Tamagnone, Michele Optics Mesoscale and Nanoscale Physics Quantum Physics Overcoming the limitations of current nanofabrication techniques to achieve nanoscale feature sizes is essential for achieving new regimes of light-matter interactions at extreme frequencies and length scales. Here, we demonstrate a scalable nanofabrication platform capable of producing in-plane feature sizes down to 1.75 nm, pushing the boundaries of current top-down nanofabrication techniques. Using precise thickness control of atomic layer deposition (ALD) and employing widely spaced oxide nanofins, we transform conventional ALD into a surface structuring method that produces nanolaminates with sub-10 nm periodicities over large areas. The resulting nanostructures can be used as a one-dimensional gate array to control charge carriers in two-dimensional materials. As an initial demonstration, we integrate the platform with graphene and perform electron transport measurements. In the presence of the gate array enabled by the nanolaminate, we observe satellite Dirac peaks consistent with band-structure modulation, suggestive of quantum-confinement effects. Our platform paves the way for exploring previously inaccessible regimes of nanoscale light-matter interactions, holding significant promise for applications in short wavelength optics, electronics, and polaritonics. |
| title | A scalable platform for nanometer-scale quantum confinement |
| topic | Optics Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2604.08957 |