TADF (“T A D F”) compounds undergoing this phenomenon are responsible for the high internal efficiency of organic devices first researched by Chihaya Adachi. This phenomenon's anisotropy (an-ICE-uh-trop-ee) is calculated from a ratio of intensity and the grating factor. TTA (“T T A”) was proposed to explain anthracene derivatives undergoing this phenomenon through a Dexter electron transfer. Similar to techniques such as STED (stehd), Stefan Hell's 4Pi microscope achieves "super" resolutions by deactivating this phenomenon. Exciplex (eck-suh-plecks) formation can cause the quenching of this phenomenon, which (10[2])does not occur (10[1])in (10[1])photobleached molecules. This spin-preserving phenomenon occurs in namesake "phores" of small molecule sensors, similar to labels or dyes used in flow cytometry. (10[1])For 10 points, name this immediate form of light emission that occurs in shorter time (10[2])spans (10[2])than phosphorescence. ■END■