Ultrafast silicon-based active plasmonics at telecom wavelengths

被引：39

作者：

Caspers, Jan N. ^{[1
,2
,3
]}

Rotenberg, Nir ^{[1
,2
]}

van Driel, Henry M. ^{[1
,2
]}

机构：

[1] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

[2] Univ Toronto, Inst Opt Sci, Toronto, ON M5S 1A7, Canada

[3] KIT, Inst Angew Phys, D-76131 Karlsruhe, Germany

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 19期

关键词：

ALL-OPTICAL MODULATION; SUBWAVELENGTH OPTICS; SURFACE; SWITCH;

D O I：

10.1364/OE.18.019761

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using a gold/silicon grating coupler and modulating the silicon dielectric constant with 775 nm, 800 fs pump pulses we demonstrate an ultrafast spectral shift to a surface plasmon polariton coupling resonance for 1300-1700 nm probe pulses. With a modest pump fluence of 2.2 mJcm(-2) the pump-induced free carriers shift the resonance by more than its width, with recovery occurring in 103 ps due to surface recombination. (C) 2010 Optical Society of America

引用

页码：19761 / 19769

页数：9

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