(a) ITR-PEEM of the four localized plasmons on the Ag grating framed.^[50] The delay time between the pump and probe pulses (τ_d) is advanced from −0.33 fs to 40.69 fs or −14×2π – −3012×2π in terms of the optical phase of the carrier light (400 nm) with an increment step of 0.33 fs or 12π . All four dots oscillate in-phase with the field during the optical excitation by the pump pulse ( −14×2π – −512×2π ). (b) ITR-PEEM movie frames of the Ag film excited with phase-locked pump–probe pulse pairs.^[54] (c) Slit width dependence of the polarization grating pattern.^[55] (d) Representative map of sample emission upon excitation of plasmons in an Ag nanowire.^[57] (e) Au step and Au nanodot excitation via SPP coupling recorded in real time.^[58] (f) Selected TR-MP-PEEM images at different phase delays/delay times for an array of Au nanorods.^[59] (g) PEEM detection and simulation results of the SR-SPP nanofocus process.^[60]