Key points are not available for this paper at this time.
Photoacoustic observation of nonradiative decay of surface plasmons was made on the plasmons excited at a silver-air interface by the attenuated-total-reflection method. Analysis made in conjunction with simultaneously measured optical absorptance data allowed us to separate the radiative and nonradiative relaxations and determine their relative probabilities.
Inagaki et al. (Tue,) studied this question.