تقرير
Photoluminescence imaging of single photon emitters within nanoscale strain profiles in monolayer WSe$_2$
| العنوان: | Photoluminescence imaging of single photon emitters within nanoscale strain profiles in monolayer WSe$_2$ |
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| المؤلفون: | Abramov, Artem N., Chestnov, Igor Y., Alimova, Ekaterina S., Ivanova, Tatiana, Mukhin, Ivan S., Krizhanovskii, Dmitry N., Shelykh, Ivan A., Iorsh, Ivan V., Kravtsov, Vasily |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Quantum Physics |
| الوصف: | Local deformation of atomically thin van der Waals materials provides a powerful approach to create site-controlled chip-compatible single-photon emitters (SPEs). However, the microscopic mechanisms underlying the formation of such strain-induced SPEs are still not fully clear, which hinders further efforts in their deterministic integration with nanophotonic structures for developing practical on-chip sources of quantum light. Here we investigate SPEs with single-photon purity up to 98% created in monolayer WSe$_2$ via nanoindentation. Using photoluminescence imaging in combination with atomic force microscopy, we locate single-photon emitting sites on a deep sub-wavelength spatial scale and reconstruct the details of the surrounding local strain potential. The obtained results suggest that the origin of the observed single-photon emission is likely related to strain-induced spectral shift of dark excitonic states and their hybridization with localized states of individual defects. Comment: 8 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1038/s41467-023-41292-9 |
| URL الوصول: | http://arxiv.org/abs/2301.09478 |
| رقم الأكسشن: | edsarx.2301.09478 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1038/s41467-023-41292-9 |
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