تقرير
Bright electrically contacted circular Bragg grating resonators with deterministically integrated quantum dots
| العنوان: | Bright electrically contacted circular Bragg grating resonators with deterministically integrated quantum dots |
|---|---|
| المؤلفون: | Wijitpatima, Setthanat, Auler, Normen, Mudi, Priyabata, Funk, Timon, Barua, Avijit, Shrestha, Binamra, Limame, Imad, Rodt, Sven, Reuter, Dirk, Reitzenstein, Stephan |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Applied Physics |
| الوصف: | Cavity-enhanced emission of electrically controlled semiconductor quantum dots is essential in developing bright quantum devices for real-world quantum photonic applications. Combining the circular Bragg grating (CBG) approach with a PIN-diode structure, we propose and implement an innovative concept for ridge-based electrically-contacted CBG resonators. Through fine-tuning of device parameters in numerical simulations and deterministic nanoprocessing, we produced electrically controlled single quantum dot CBG resonators with excellent electro-optical emission properties. These include multiple wavelength-tunable emission lines and a photon extraction efficiency (PEE) of up to (30.4$\pm$3.4)%, where refined numerical optimization based on experimental findings suggests a substantial improvement, promising PEE >50%. Additionally, the developed quantum light sources yield single-photon purity reaching (98.8$\pm$0.2)% [post-selected: (99.5$\pm$0.3)%] and a photon indistinguishability of (25.8$\pm$2.1)% [post-selected: (92.8$\pm$4.8)%]. Our results pave the way for high-performance quantum devices with combined cavity enhancement and deterministic charge-environment controls, advancing the development of photonic quantum information systems such as complex quantum repeater networks. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2406.08057 |
| رقم الأكسشن: | edsarx.2406.08057 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |