Ol'shanii, M.Vanicek, J.Prentiss, M.2007-12-122007-12-122007-12-12199610.1088/1355-5111/8/3/025https://infoscience.epfl.ch/handle/20.500.14299/15491We describe a simple and robust method of creating an efficient large-angle adiabatic passage beamsplitter that does not require the light fields to be pulsed. We present simulations that show momentum splittings of 80 \hbar k, where more than 60% of the atoms in the initial distribution are in the final momentum peaks at +/- 40 \hbar k.text::journal::journal article::research article