Fei Y Y, Wang X, Zhu X D
Department of Physics, University of California, Davis, CA 95616, USA.
Opt Lett. 2008 Aug 15;33(16):1914-6. doi: 10.1364/ol.33.001914.
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 epsilonCu(633 nm)=-9.53+i0.142 and epsilonCu(780 nm)=-13.44+i0.18. The grating-coupled SPPWs can be used to study mass transport on thin films.
我们通过将光束与吸附的氙光栅耦合，在Cu(111)上激发了表面等离子体激元极化子波（SPPWs）。SPPWs的激发在角分辨反射率差测量中导致了类似共振的凹陷。通过该共振，我们确定了光学常数εCu(633 nm)= -9.53 + i0.142和εCu(780 nm)= -13.44 + i0.18。光栅耦合的SPPWs可用于研究薄膜上的质量传输。
