Spontaneous emission enhancement in strain-induced WSe2 monolayer based quantum light sources on metallic surfaces

التفاصيل البيبلوغرافية
العنوان: Spontaneous emission enhancement in strain-induced WSe2 monolayer based quantum light sources on metallic surfaces
المؤلفون: Tripathi, Laxmi Narayan, Iff, Oliver, Betzold, Simon, Emmerling, Monika, Moon, Kihwan, Lee, Young Jin, Kwon, Soon-Hong, Höfling, Sven, Schneider, Christian
سنة النشر: 2017
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Mesoscale and Nanoscale Physics
الوصف: Atomic monolayers of transition metal dichalcogenides represent an emerging material platform for the implementation of ultra compact quantum light emitters via strain engineering. In this framework, we discuss experimental results on creation of strain induced single photon sources using a WSe2 monolayer on a silver substrate, coated with a very thin dielectric layer. We identify quantum emitters which are formed at various locations in the sample. The emission is highly linearly polarized, stable in linewidth and decay times down to 300 ps are observed. We provide numerical calculations of our monolayer-metal device platform to assess the strength of the radiative decay rate enhancement by the presence of the plasmonic structure. We believe, that our results represent a crucial step towards the ultra-compact integration of high performance single photon sources in nanoplasmonic devices and circuits.
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/1709.00631
رقم الأكسشن: edsarx.1709.00631
قاعدة البيانات: arXiv