A semiconductor laser device for the generation of surface-plasmons upon electrical injection.
Surface plasmons are electromagnetic waves originating from electrons and light oscillations at metallic surfaces. Since freely propagating light cannot be coupled directly into surface-plasmon modes, a compact, semiconductor electrical device capable of generating SPs on the device top metallic surface would represent an advantage: not only SP manipulation would become easier, but Au-metalized surfaces can be easily functionalized for applications. Here, we report a demonstration of such a device. The direct proof of surface-plasmon generation is obtained with apertureless near-field scanning optical microscopy, which detects the presence of an intense, evanescent electric field above the device metallic surface upon electrical injection.
Bousseksou
A
A
Institut d'Electronique Fondamentale, Université Paris-Sud and CNRS, UMR8622, 91405 Orsay, France.
Colombelli
R
R
Babuty
A
A
De Wilde
Y
Y
Chassagneux
Y
Y
Sirtori
C
C
Patriarche
G
G
Beaudoin
G
G
Sagnes
I
I
D017076:Computer-Aided Design; D004581:Electronics / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D054023:Lasers, Semiconductor; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D020349:Surface Plasmon Resonance / Q000295:instrumentation*