Abstract

We excited surface-plasmon polariton waves (SPPWs) on Cu(111) by coupling optical beams with adsorbed xenon gratings. The SPPWs’s excitation causes a resonancelike dip in the angle-resolved reflectivity difference measurement. From the resonance we determined optical constants ${\epsilon }_{\mathrm{Cu}}\left(633\mathrm{nm}\right)=-9.53+i0.142$ and ${\epsilon }_{\mathrm{Cu}}\left(780\mathrm{nm}\right)=-13.44+i0.18$. The grating-coupled SPPWs can be used to study mass transport on thin films.

© 2008 Optical Society of America

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