%0 Journal Article %T Photoacoustic detection of photothermal heterodyning: a method for determination of chromophore distances in aqueous solution %A Bai, Wenyu %A Diebold, Gerald J %J Journal of Physics D: Applied Physics %V 53 %N 10 %P 7 %@ 0022-3727 %D 2020-03-06 %~ DeepDyve