"Femtosecond laser induced surface melting and nanojoining for - TopicsExpress



          

"Femtosecond laser induced surface melting and nanojoining for plasmonic circuits" Femtosecond laser induced nonthermal processing is an emerging nanofabrication technique for delicate plasmonic devices. In this work we present a detailed investigation on the interaction between ultra-short pulses and silver nanomaterials, both experimentally and theoretically. The optimal processing window for welding is elucidated. We investigate the size and shape effect on the interaction using finite-element time-domain (FDTD) simulation. FDTD simulation shows that a femtosecond laser pulse can induce surface melting due to the near field enhancement. The femtosecond laser-induced melting thus allows precise welding of silver nanoparticials with subnanosized gaps and silver nanowires for “T” and “X” shape circuits. spie.org/app/program/index.cfm?fuseaction=conferencedetail&conference_id=2012208&event_id=896200 _________________
Posted on: Mon, 19 Aug 2013 19:25:14 +0000

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