Mark Jurich wrote:

    | The THz Probe Pulse is 800 nm Wavelength and could be
    | exciting SPPs, optically (vs. Terahertz) if I understand the
    | setup correctly.  Here is a link to Ref. 19 which describes
    | the experimental setup (hopefully you can get to the paper):

    | http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-17-8-6600

You idiot, look at Fig. 1 in Ref. 19 better and you will see that the Probe Pulse doesn't go through the Sample, so 800 nm radiation should never make it there, especially if one places a 800 nm Optical Rejection filter in the path! :)

... Table II is still puzzling with respect to the flip between Ni/Ag - Ni/Al Attenuation and Co/Ag - Co/Al Attenuation. Somehow, I would expect the Ni Values to be correct and the Co ones to be the ones out of place...

Here are some crude e1/e2 Optical Constants I dug up, at the 0.75 THz Region (25 cm-1 (wavenumbers), or 400 um):

Ni:    e1: -6E4     e2: 3E5

Au:   e1: -8.6E4  e2: 6.2E5
Ag:   e1: -3E5     e2: 1.5E6
Al:    e1: -3E4     e2: 1E6

where e = e1 + i e2 .

... I'm still searching for the Co Values...

FYI: Here is a link to their earlier PRL Paper when they first introduced their Spintronic-Plasmonic Cobalt Media:

http://www.physics.gla.ac.uk/~dtngo/Article/PRL_98_133901_2007.pdf

The above paper mentions Co:  e1: -1E5 .

... Have fun, Spintronicating!

- Mark Jurich

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