Polarization Effects in both Emission Spectra and Microscopic Images of Lasing Microdroplets Levitated in an Ion Trap

Polarization properties of single lasing microdroplets levitated in an ion trap have been investigated in both emission spectra and microscopic images. The polarization phenomena strongly depend on the observation direction and the orientation of a transparent axis of the polarization analyzer. We suggest such effects originate because excited molecular dipoles preserve the memory of the polarization of the pump field well.