Coherent control of plasmon wavepackets by ultrashort near-field pulses

2014 Fiscal Year Final Research Report

• Project/Area Number: 25810013
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Physical chemistry
• Research Institution: Institute for Molecular Science
• Principal Investigator: NISHIYAMA Yoshio 分子科学研究所, 光分子科学研究領域, 特任助教 (40617487)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: プラズモン / 近接場測定 / ダイナミクス / 波束

Outline of Final Research Achievements

I am aimed at observing and controlling the dynamics of the plasmon wavepacket in noble metal nanostructure by ultrafast time-resolved near-field optical microscopy. I developed ultrafast near-field microscopy that makes it possible to observe plason wavepacket and achieved ultrashort near-field pulse with 15 femtosecond duration. I realized the experimental observation of the wavepacket dynamics composed of multiple plasmon modes for the first time by applying time-resolved near-field measurements into a single glod nanorod. I also demonstrated that the wavepacket dynamics is controllable by time-resolved imaging based on pump-probe scheme.

Free Research Field

ナノ分光学