Two-step enantio-selective optical switch Academic Article uri icon


  • We present an optical ``enantio-selective switch'' that, in two steps, turns a (``racemic'') mixture of left-handed and right-handed chiral molecules into the enantiomerically pure state of interest. The optical switch is composed of an ``enantio-discriminator'' and an ``enantio-converter'' acting in tandem. The method is robust, insensitive to decay processes, and does not require molecular preorientation. We demonstrate the method on the purification of a racemate of (transiently chiral) ${\mathrm{D}}_{2}{\mathrm{S}}_{2}$ molecules, performed on the nanosecond time scale.

publication date

  • January 1, 2003