| Project/Area Number |
23560413
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Nihon University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
ITOH Akiyoshi 日本大学, 名誉教授 (60059962)
OHNUKI Shinichiro 日本大学, 理工学部, 准教授 (80386002)
TSUKAMOTO Arata 日本大学, 理工学部, 准教授 (30318365)
ASHIZAWA Yoshito 日本大学, 理工学部, 助教 (10453911)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Keywords | 記憶・記録 / 近接場光 / データストレージ / 磁気記録 / 熱工学 / マイクロナノデバイス / 電子・デバイス機器 / 電子・デイバス機器 / 円偏向 |
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| Research Abstract |
For an ultra-fast and ultra-high density magnetic recording using a photo-induced magnetization reversal phenomenon, we studied 1) establishing a method of confining circularly polarized light into an order of nano-meter size, 2) clarifying transient response of surface plasmon resonance, and 3) verifying an ultra-fast and ultra-high density recording. As a result, a confined small circularly polarized light in an isolated particle medium was confirmed by using both a four-leaf clover aperture and an isolated particle medium. It was shown that the circularly polarized light was able to be generated from surface plasmon polaritons, which propagated at an interface between a metal and a dielectric material. It is found that the circularly polarized light was exited in ~50 fs by a transient response analysis. A tiny magnetic recording mark of 62 x 67 nm2 were written by optical near field generated by a plasmon antenna using a 90-fs pulsed laser.
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