“…A recently emerging technique called surface plasmon coupled emission (SPCE) has been investigated by combining SPR technique with fluorescence technology based on Reverse-Kretschmann (RK) configuration. SPCE is a detection method whereby excited fluorophores were coupled with plasmon resonance oscillations of electrons in metal films such as gold (Au) and silver (Ag) providing fluorescence enhancement, control, steering, and directivity [19], [20], [21], [22], [23], [24], [25], [26].…”