text: This process "activates" cell sorting in the most common method of flow cytometry.
full_question: This process "activates" cell sorting in the most common method of flow cytometry. This process corresponds to the decay from S1 to S0 without internal conversion on a Jablonski diagram. This phenomenon is "recovered" after photobleaching in a technique used to study the cell membrane. The Stern-Volmer equation gives the decrease in quantum yield of this process in the presence of (*) quenchers. A common reporter protein which undergoes this process has a serine-tyrosine-glycine motif in a beta barrel. An arrow drawn from the excited to ground state represents this phenomenon, in which electrons absorb energy, and then emit at a lower wavelength, generating light. For 10 points, name this type of luminescence shown by GFP.
first_sentence: This process "activates" cell sorting in the most common method of flow cytometry.
raw_answer: fluorescence [or word forms; prompt on luminescence]