Tm${}^{3+}$:Y${}_3$Ga${}_5$O${}_{12}$ materials for spectrally multiplexed quantum memories

Charles W. Thiel, Neil Sinclair, Wolfgang Tittel +1

We investigate the relevant spectroscopic properties of the 795 nm ${}^3$H${}_6$$\leftrightarrow$${}^3$H${}_4$ transition in 1% Tm${}^{3+}$:Y${}_3$Ga${}_5$O${}_{12}$ at temperatures as low as 1.2…