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Nonlinear plasmonic frequency conversion through quasiphase matching
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DOI：10.1103/PhysRevB.82.155107.png)
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摘要
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An efficient frequency conversion scheme of surface-plasmon polariton (SPP) is proposed for nonlinear plasmonic applications. Lossy coupling wave equations are deduced to describe the interaction among involved SPP frequency components. The reciprocal vector of a microstructure could partially compensate the SPP wave-vector mismatch through quasiphase matching (QPM). As an example, the frequency doubling of SPP over a periodically poled lithium niobate is studied. The high-field concentration of SPP greatly enhanced the second-harmonic generation (HG) over a short traveling distance. Although the high attenuation of SPP affects the SHG severely, a long-range SPP SHG is further proposed and investigated, which shows great efficiency improvement. The applications of QPM SPP frequency conversion are also discussed showing great potentials in miniature plasmonic sources and processors.
Keyword:
WAVE-GUIDE
2ND-HARMONIC GENERATION
OPTICAL-PROPERTIES
SURFACE-PLASMONS
EFFICIENT
CRYSTAL
DIODE
NM
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期刊
IF:
3.7
论文数:
15.4W
被引数:
41.0W
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100 mW high efficient single pass SHG at 488 nm of a single broad area laser diode with external cavity using a PPLN waveguide crystal.png)
OPTICS EXPRESS
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OPTICS EXPRESSIF3.3
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