Variants of Chiroptical Methods

however, possible to measure chiroptical properties related to the excited states of molecules - circularly polarized luminescence (CPL) [13]. In this case, the sample is excited by unpolarized radiation and the luminescence signal is analyzed by a circular analyzer. Several variants of this concept have been developed, but the applications are targeted more on electronic structure of the excited states of molecules than to their geometries. 

Chiroptical properties related to molecular vibrations can be studied not only by vibrational circular dichroism, but also by using the chiral variant of the Raman spectroscopy - Raman optical activity (ROA) [14-16]. This method has been developed into practical use only recently, but it is very promising and similarly to the 

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