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Luminescence-based molecular scale logic circuits
Authors:Olga Kuznetz
Institution:Schulich Faculty of Chemistry, Technion—Israel Institute of Technology, Haifa 32000, Israel
Abstract:We show how a half-adder logic circuit can be implemented on one molecule for a molecule exhibiting both S1→S0 and S2→S0 fluorescence. This is achieved by using both one photon S0→S1 excitation and consecutive S1→S2 excitation and establishing logic thresholds by utilizing the laser-induced photoquenching process. We present results pertaining to rhodamine and azulene molecules, in which, for the first time, an all optical half-adder logic circuit is implemented.
Keywords:Molecular logic  Half-adder  Rhodamine  Azulene
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