Transfluorescence

For example, in contrast to transfluorescence microscopes, the intensity of illumination and consequently the amount of excitation energy increases as a function of increasing magnification.

Likewise in fluorescence applications, an epifluorescence configuration is normally chosen over transfluorescence.

Epifluorescence involves illuminating the specimen from above while in transfluorescence the excitation light comes from below the sample [Weeks, 2004].