Zero-phonon lines in the spectra of dysprosium atoms in superfluid helium

Autor:	Moroshkin, P., Kono, K.
Rok vydání:	2018
Předmět:	Physics - Chemical Physics Condensed Matter - Mesoscale and Nanoscale Physics Physics - Optics
Zdroj:	Phys. Rev. B 99, 104512 (2019)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.99.104512
Popis:	We present an experimental study of a zero-phonon line (ZPL) in the absorption spectrum of Dy atoms solvated in superfluid He. The dopants reside in nanometer-sized spherical cavities known as atomic bubbles. We observe a temperature-dependent broadening of ZPL in the absorption spectrum. The effect is attributed to the scattering of thermal phonons on the atomic bubble that leads to the dephasing of the Dy transition dipole. The extrapolated ZPL intrinsic spectral width at zero temperature is 2300 times larger than the natural linewidth in a free atom. This can be assigned to a fast radiationless quenching of the upper state of the studied transition.
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1812.05275 Zobrazit plný text záznamu View this record from Arxiv