Purcell enhancement of fluorescence from silicon-vacancy color centers in Mie-resonant luminescent diamond particles

Autor:	Evgeny A. Ekimov, Daniil A. Shilkin, Dmitriy Zuev, Igor I. Vlasov, Oleg S. Kudryavtsev, Evgeny V. Lyubin, Andrey A. Fedyanin, Dmitry V. Obydennov, Vitaly Yaroshenko, Ekaterina I. Elyas
Rok vydání:	2021
Předmět:	History Materials science Silicon business.industry Diamond chemistry.chemical_element engineering.material Fluorescence Computer Science Applications Education chemistry Vacancy defect engineering Optoelectronics Luminescence business
Zdroj:	Journal of Physics: Conference Series. 2015:012101
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/2015/1/012101
Popis:	Over the past two decades, nanosized diamond particles with various luminescent defects have found numerous applications in many areas from quantum technologies to medical science. The size and shape of diamond particles can affect drastically the luminescence of embedded color centers. Here we study diamond particles of 250–450 nm in size containing silicon-vacancy (SiV) centers. Using dark-field scattering spectroscopy, we found that fundamental Mie resonances are excited in the spectral range of interest. We then measured the fluorescence saturation curves under continuous excitation to estimate the effects of the excitation and Purcell factor enhancement on the luminescent properties of the studied particles. The results show that the saturation excitation intensity differs by several times for particles of different sizes which is well explained by the numerical model that takes into account both the Parcell factor enhancement and resonant excitation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6dd75b72c7d4bbbf0fddb944d245bbb9 https://doi.org/10.1088/1742-6596/2015/1/012101 Zobrazit plný text záznamu