Seminarium Optyczne

Narrow, zero-phonon lines of single fluorescent molecules embedded in crystalline organic matrices at cryogenic temperatures provide a sensitive nanoprobe of electric fields and charges. Broad tunability of the molecular transitions will be demonstrated for dibenzoterrylene molecules in anthracene and in 2,3-dibromonaphthalene crystals, where a quadratic and a linear Stark shifts have been respectively observed. Recently, it has been demonstrated that the spectral tuning can be also induced optically. The presented systems show promise for photonic quantum technologies.