Creating Quantum Emitters in Hexagonal Boron Nitride Deterministically
on Chip-Compatible Substrates
- URL: http://arxiv.org/abs/2106.14983v1
- Date: Mon, 28 Jun 2021 20:58:02 GMT
- Title: Creating Quantum Emitters in Hexagonal Boron Nitride Deterministically
on Chip-Compatible Substrates
- Authors: Xiaohui Xu, Zachariah O. Martin, Demid Sychev, Alexei S. Lagutchev,
Yong Chen, Takashi Taniguchi, Kenji Watanabe, Vladimir M. Shalaev, Alexandra
Boltasseva
- Abstract summary: Two-dimensional hexagonal boron nitride (hBN) hosts bright room-temperature single-photon emitters (SPEs)
Here, we report a radiation- and lithography-free route to deterministically activate hBN SPEs by nanoindentation with an atomic force microscope (AFM) tip.
- Score: 51.112488102081734
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Two-dimensional hexagonal boron nitride (hBN) that hosts bright
room-temperature single-photon emitters (SPEs) is a promising material platform
for quantum information applications. An important step towards the practical
application of hBN is the on-demand, position-controlled generation of SPEs.
Several strategies have been reported to achieve the deterministic creation of
hBN SPEs. However, they either rely on a substrate nanopatterning procedure
that is not compatible with integrated photonic devices or utilize a radiation
source that might cause unpredictable damage to hBN and underlying substrates.
Here, we report a radiation- and lithography-free route to deterministically
activate hBN SPEs by nanoindentation with an atomic force microscope (AFM) tip.
The method is applied to thin hBN flakes (less than 25 nm in thickness) on flat
silicon-dioxide-silicon substrates that can be readily integrated into on-chip
photonic devices. The achieved SPEs yields are above 30% by utilizing multiple
indent sizes, and a maximum yield of 36% is demonstrated for the indent size of
around 400 nm. Our results mark an important step towards the deterministic
creation and integration of hBN SPEs with photonic and plasmonic on-chip
devices.
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