تقرير
Electrically driven strain-induced deterministic single-photon emitters in a van der Waals heterostructure
| العنوان: | Electrically driven strain-induced deterministic single-photon emitters in a van der Waals heterostructure |
|---|---|
| المؤلفون: | So, Jae-Pil, Kim, Ha-Reem, Baek, Hyeonjun, Lee, Hoo-Cheol, Huh, Woong, Kim, Yoon Seok, Watanabe, Kenji, Taniguchi, Takashi, Kim, Jungkil, Lee, Chul-Ho, Park, Hong-Gyu |
| سنة النشر: | 2021 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Applied Physics |
| الوصف: | Quantum confinement in atomically-thin TMDCs enables the realization of deterministic single-photon emitters. The position and polarization control of single photons have been achieved via local strain engineering using nanostructures. However, most existing TMDC-based emitters are operated by optical pumping, while the emission sites in electrically pumped emitters are uncontrolled. Here, we demonstrate electrically driven single-photon emitters located at the positions where strains are induced by atomic-force-microscope indentation on a van der Waals heterostructure consisting of graphene, hexagonal-boron nitride, and tungsten diselenide. The optical, electrical, and mechanical properties induced by the local strain gradient were systematically analyzed. In particular, single-photon emission was observed at the indentation sites at 4 K. The emission exhibits photon anti-bunching behavior with a g(2)(0) value of ~0.3, intensity saturation and a linearly cross-polarized doublet. This robust spatial control of electrically driven single-photon emitters will pave the way for the practical implementation of integrated quantum light sources. Comment: 29 pages, 8 figures |
| نوع الوثيقة: | Working Paper |
| الوصول الحر: | http://arxiv.org/abs/2105.01312Test |
| رقم الانضمام: | edsarx.2105.01312 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |