| Project/Area Number |
22246012
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied physics, general
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MATSUDA Osamu 北海道大学, 大学院・工学研究院, 准教授 (30239024)
TOMODA Motonobu 北海道大学, 大学院・工学研究院, 助教 (30344485)
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| Research Collaborator |
OTSUKA Paul 北海道大学, 大学院・工学・研究院, 研究員
JEREMY Baumberg Cambridge University, 教授
L. KOBUS Kuipers FOM, Amsterdam, 教授
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥47,580,000 (Direct Cost: ¥36,600,000、Indirect Cost: ¥10,980,000)
Fiscal Year 2012: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Fiscal Year 2011: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Fiscal Year 2010: ¥26,650,000 (Direct Cost: ¥20,500,000、Indirect Cost: ¥6,150,000)
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| Keywords | プラズモン / コヒーレントフォノン / イメージング / 音響光学変調 / 異常光透 過現象 / 音響光変調器 / 異常透過現象 |
|---|
| Research Abstract |
By means of an ultrafast optical technique, we investigate the coupling of high frequency phonons at GHz frequencies with metallic plasmonic structures. Various samples are probed, including nanovoid arrays, lattices of tiny holes exhibiting extraordinary optical transmission (EOT) and nanoscale linear waveguides. For the nanovoid arrays, we reveal GHz breathing vibrations of the voids by 2D imaging, showing how the vibrations couple to localized Mie plasmons. For the EOT samples, we reveal collective vibration of the hole arrays, and their effect on the optical transmission modulation. For the waveguides we describe work in progress, and fabrication of nanoscale linear gold waveguides.
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