Optical detection of charge defects near a graphene transistor using the Stark shift of fluorescent molecules
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908301282770944 |
|---|---|
| author | Ciancico, Carlotta Torre, Iacopo Terrés, Bernat Moreno, Alvaro Smit, Robert Watanabe, Kenji Taniguchi, Takashi Orrit, Michel Koppens, Frank Reserbat-Plantey, Antoine |
| author_facet | Ciancico, Carlotta Torre, Iacopo Terrés, Bernat Moreno, Alvaro Smit, Robert Watanabe, Kenji Taniguchi, Takashi Orrit, Michel Koppens, Frank Reserbat-Plantey, Antoine |
| contents | Two-dimensional crystals and their heterostructures unlock access to a class of photonic devices, bringing nanophotonics from the nanometer scale down to the atomic level where quantum effects are relevant. Single-photon emitters (SPEs) are central in quantum photonics as quantum markers linked to their electrostatic, thermal, magnetic, or dielectric environment. This aspect is exciting in two-dimensional (2D) crystals and their heterostructures, where the environment can be abruptly modified through vertical stacking or lateral structuring, such as moiré or nano-patterned gates. To further develop 2D-based quantum photonic devices, there is a need for quantum markers that are capable of integration into various device geometries, and that can be read out individually, non-destructively, and without additional electrodes. Here, we show how to optically detect charge carrier accumulation using sub-GHz linewidth single-photon emitters coupled to a graphene device. We employ the single molecule Stark effect, sensitive to the electric fields generated by charge puddles, such as those at the graphene edge. The same approach enables dynamic sensing of electronic noise, and we demonstrate the optical read-out of low-frequency white noise in a biased graphene device. The approach described here can be further exploited to explore charge dynamics in 2D heterostructures using quantum emitter markers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_03180 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Optical detection of charge defects near a graphene transistor using the Stark shift of fluorescent molecules Ciancico, Carlotta Torre, Iacopo Terrés, Bernat Moreno, Alvaro Smit, Robert Watanabe, Kenji Taniguchi, Takashi Orrit, Michel Koppens, Frank Reserbat-Plantey, Antoine Mesoscale and Nanoscale Physics Quantum Physics Two-dimensional crystals and their heterostructures unlock access to a class of photonic devices, bringing nanophotonics from the nanometer scale down to the atomic level where quantum effects are relevant. Single-photon emitters (SPEs) are central in quantum photonics as quantum markers linked to their electrostatic, thermal, magnetic, or dielectric environment. This aspect is exciting in two-dimensional (2D) crystals and their heterostructures, where the environment can be abruptly modified through vertical stacking or lateral structuring, such as moiré or nano-patterned gates. To further develop 2D-based quantum photonic devices, there is a need for quantum markers that are capable of integration into various device geometries, and that can be read out individually, non-destructively, and without additional electrodes. Here, we show how to optically detect charge carrier accumulation using sub-GHz linewidth single-photon emitters coupled to a graphene device. We employ the single molecule Stark effect, sensitive to the electric fields generated by charge puddles, such as those at the graphene edge. The same approach enables dynamic sensing of electronic noise, and we demonstrate the optical read-out of low-frequency white noise in a biased graphene device. The approach described here can be further exploited to explore charge dynamics in 2D heterostructures using quantum emitter markers. |
| title | Optical detection of charge defects near a graphene transistor using the Stark shift of fluorescent molecules |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2504.03180 |