The properties and behavior of the Surface plasmon polaritons(SPP) varies as a function of its lifetime. A short lived SPP performs a different job than its longer lived brothers. A short lived SPP will only exists on a femtosecond time scale. Metals support SPPs that exert forces on electrons causing an SPP-enhanced photon drag effect (PDE). A pronounced drag effect begins to take hold under the conditions of strong nanoplasmonic confinement, when the SPP localization radius is less than the skin depth (∼ 25 nm), has not been studied or exploited theoretically or experimentally in nanoplasmonics.
A giant surface plasmon induced drag effect (SPIDEr) in metal nanowires, which is very fast, with response on the femtosecond time scale. Recent research shows that the ultra short, nanolocalized SPP pulses exert great forces on electrons in thin nanowires, inducing giant THz electromotive force (emf) along the SPP propagation direction. In thin (∼ 5 nm radius) nanowires this emf can reach ∼ 10 V, with nanolocalized THz fields as high as ∼ 1 MV/cm. Such THz field have previously been generated in the far zone, where they produce non-perturbative effects, but not on the nanoscale. In contrast, the plasmonic metal nanowires can serve as nanolocalized sources of high THz emf fields exerting accelerating force on electrons of its associated dipole. In LENR, one of the functions that Surface plasmon polaritons(SPP) perform is to transfer the energy carried by heat (IR) photons and inject that heat energy into the dipoles vibrations that form the matter based component of the SPP. There exists a energy concentration mechanism that feeds power into energetic electrons when these electrons are accelerated by the linear momentum contained in the IR photons that comprise the SPP. A SPP that dies quickly, produces more EMF force than one that exists for a long time and then dies slowly. There is an analogy to the dynamics of sparks. This SPP behavior seems to correspond to the proportional amplification of instantaneous power produced by a very short lived sparks. A spark that dies off quickly must shed all its power in a very short time frame. This lends itself to intense power amplification. The shorter lived the spark, the higher the instantaneous power that the spark produces when it dies. The following seems to be the relationship involves with this SPP ultra short collapse mechanism. EMF power is proportional for any given SPP power level to nanoplasmonic confinement. Nanoplasmonic confinement is related to the time that the SPP exists. A short lived SPP has a large and relatively leak proof nanoplasmonic confinement. Like a wakefield accelerator, a rapidly collapsing SPP will push electrons at high force levels proportional to its rate of collapse. The linear momentum of the SPP is transferred to the electrons with a great force giving the electron a high level of instantaneous power. A very small the nanoparticle and it associated contact plasma channel that the SPP forms with another touching nanoparticle, the higher the nanoplasmonic confinement and the shorter is that SPP lifetime. The EMF force produced by the SPP is inversely proportional to the cube of the diameter of the plasma channel. That is to say, a tiny sub-nanometer channel means a huge EMF power amplification factor. When two nanoparticles touch, the size of their point of contact defines their EMF instantaneous power amplification factor. The EMF force produced by the SPP is inversely proportional to the cube of the diameter of the plasma channel. That is to say, a tiny channel means a huge EMF amplification factor applied to the electron in the dipole at that point of contact. A small nanoparticle will produce a smaller point of contact and a proportionally larger EMF force application factor. In this way, the energy in the heat applied to the system is transferred to the dipoles as a huge increase in electron power. Now this electron has the ability to pair up with a EMF photon of even a higher frequency. In a short time, the SPP system will gradually clime an acceding frequency ladder to EMF levels in the extreme ultra violet (XUV) range.
