title: Two-step enantio-selective optical switch.
abstract: 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) D2S2 molecules, performed on the nanosecond time scale.
authors.affiliation: Department of Chemical Physics, Weizmann Institute of Science, Rehovot, Israel.
authors.forename: Petr
authors.initials: P
authors.lastname: Král
authors.forename: Ioannis
authors.initials: I
authors.lastname: Thanopulos
authors.forename: Moshe
authors.initials: M
authors.lastname: Shapiro
authors.forename: Doron
authors.initials: D
authors.lastname: Cohen