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要旨:
We perform laser spectroscopy at liquid helium temperatures (T=2 K) to investigate single dibenzoterrylene
(DBT) molecules doped in anthracene crystals of nanoscopic height fabricated by electrohydrodynamic dripping.
Using high-resolution fluorescence excitation spectroscopy, we show that zero-phonon lines of single molecules
in printed nanocrystals are nearly as narrow as the Fourier-limited transitions observed for the same guest-host
system in the bulk. Moreover, the spectral instabilities are comparable to or less than one linewidth. By
recording super-resolution images of DBT molecules and varying the polarization of the excitation beam, we
determine the dimensions of the printed crystals and the orientation of the crystals’ axes. Electrohydrodynamic
printing of organic nano and microcrystals paves the way for a series of applications, where controlled positioning
of quantum emitters with narrow optical transitions is desirable.
