Photon avalanche up-conversion in NdAl${}_3$(BO${}_3$)${}_4$ nanoparticles excited at 1064 nm

Jefferson F. da Silva, Rodrigo F. da Silva, Emanuel P. Santos +2

We report efficient non-resonant ground state excitation at 1064 nm of trivalent neodymium (Nd${}^{3+}$) ions in stoichiometric neodymium aluminum borate NdAl${}_3$(BO${}_3$)${}_4$ nanopar…