Control of Magnetic Properties in Nano- and Micro-scales with Large Optical Nonlinearity: a New Approach for Development of Functional Micromachines

具有大光学非线性的纳米和微米尺度磁特性控制:功能微机械开发的新方法

基本信息

  • 批准号:
    17310068
  • 负责人:
  • 金额:
    $ 9.84万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2005
  • 资助国家:
    日本
  • 起止时间:
    2005 至 2007
  • 项目状态:
    已结题

项目摘要

Since a large first order magnetic phase transition with a wide thermal hysteresis loop over wide temperature range was found in 1,3,5-trithia-2,4,6-triazapentalenyl (TTTA) crystal, an organic radical crystal is expected to be a new type of strong correlated electronic systems showing photoinduced phase transition (PIPT) phenomena. In this research, we explore how to control the magnetic properties of TTTA in nano- and micro-regions with large optical nonlinearity, and demonstrate a new approach for the development of functional nano and micromachines by utilizing the PIPT phenomena.Photoluminescence as well as photoinduced diamagnetic to paramagnetic phase transition in TTTA crystal has been studied in detail under two-photon absorption with different photon densities and wavelengths. Below the threshold photon density to drive the PIPT, the diamagnetic phase shows a broad luminescence band with a large Stokes shift, whose intensity obeys almost second power law of the excitation photon density. Above the threshold photon density, on the other hand, the diamagnetic to paramagnetic phase transition effectively takes place with a large conversion yield and a steep response instead of an occurrence of the photoluminescence, indicating that the phase transition is optically induced by two-photon absorption with large optical nonlinearity. Using the PIPT behavior with the large nonlinearity, the magnetic properties of TTTA can be controlled at room temperature.In order to develop the functional nano and micromachines, TTTA is distributed into UV curable resins, which are suitable for the production of 3D micromachines by using two-photon microstereolithography. We found that TTTA can be successfully distributed into the resins with keeping the PIPT characteristics by irradiation of intense laser pulses from a femtosecond regenerative amplifier.
由于在1,3,5-三硫杂-2,4,6-三氮杂并环戊二烯基(TTTA)晶体中发现了一个大的一级磁相变,并且在很宽的温度范围内具有很宽的热滞回线,有机自由基晶体有望成为一种具有光诱导相变(PIPT)现象的新型强关联电子体系.本论文研究了在不同光子密度和波长的双光子吸收下,TTTA晶体的光致发光和光诱导抗磁-顺磁相变,探索了如何在具有较大光学非线性的纳米和微米区域内控制TTTA的磁性质,并为利用PIPT现象开发功能纳米和微米机械提供了一条新的途径。在驱动PIPT的阈值光子密度以下,抗磁相显示出具有大斯托克斯位移的宽发光带,其强度几乎服从激发光子密度的二次幂定律。另一方面,在阈值光子密度以上,抗磁性到顺磁性的相变有效地发生,具有大的转换产率和陡峭的响应,而不是光致发光的发生,这表明相变是由具有大的光学非线性的双光子吸收光学诱导的。利用TTTA的大非线性PIPT行为,可以在室温下对TTTA的磁性能进行控制,并将其分散到UV固化树脂中,用于双光子微立体光刻制备三维微机械,以开发功能化的纳米和微机械。我们发现,TTTA可以成功地分散到树脂保持PIPT特性的飞秒再生放大器的强激光脉冲的照射。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Time- and Frequency-resolved Two-dimensional Transient Absorption Imaging B-Carotene in Solids
固体中 B-胡萝卜素的时间和频率分辨二维瞬态吸收成像
光物性の基礎と応用
光学物理基础与应用
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    M.Sugisaki;T.Sashima;K.Yanagi;A.Sugita;H.Hashimoto;杉崎 満 他
  • 通讯作者:
    杉崎 満 他
Luminescence Properties and Relaxation Processes of Strongly Correlated Organic Radical 'ITTA Crystals and Molecules
强相关有机自由基ITTA晶体和分子的发光性质和弛豫过程
Direct Visualization of Transient Absorption by Real-Time Pump-Probe Imaging Spectroscopy
通过实时泵浦探针成像光谱直接可视化瞬态吸收
Femtosecond real-time pump-probe imaging spectroscopy implemented on a single shot basis
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TAKEDA Jun其他文献

Aiming to Develop Human Resource Full of Creativity
以培养富有创造力的人才为目标
  • DOI:
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    0
  • 作者:
    TAKEDA Jun;NAKAMURA Jun'ichi;MORI Hirotaka
  • 通讯作者:
    MORI Hirotaka

TAKEDA Jun的其他文献

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{{ truncateString('TAKEDA Jun', 18)}}的其他基金

Research on archive sharing of English video teaching materials for flipped classrooms utilizing the scale of national colletes of technology
利用国家高专院校规模翻转课堂英语视频教材档案共享研究
  • 批准号:
    18K00816
  • 财政年份:
    2018
  • 资助金额:
    $ 9.84万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Missing link between marine protected area and drug trafficking - Toward the study of "protected area for the crime deterrence".
海洋保护区与贩毒之间缺失的联系——“保护区威慑犯罪”研究。
  • 批准号:
    17K12863
  • 财政年份:
    2017
  • 资助金额:
    $ 9.84万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Broadband single-shot spectroscopy: visualization of nonlinear optical responses under extremely driving fields
宽带单次光谱:极端驱动场下非线性光学响应的​​可视化
  • 批准号:
    16H04001
  • 财政年份:
    2016
  • 资助金额:
    $ 9.84万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Electron-Phohon Coupling Dynamics in Monolayers via Surface-Enhanced Raman Scattering
通过表面增强拉曼散射研究单层电子-声耦合动力学
  • 批准号:
    26610083
  • 财政年份:
    2014
  • 资助金额:
    $ 9.84万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Time-Frequency Real-Time Imaging and Quantum Control of Phonon-Polariton Propagations
声子极化子传播的时频实时成像和量子控制
  • 批准号:
    25600113
  • 财政年份:
    2013
  • 资助金额:
    $ 9.84万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Comprehensive screening of the differentially expressed genes in various conditions for factors involved in the development of endocrine pancreas.
全面筛选各种条件下差异表达基因,寻找内分泌胰腺发育相关因素。
  • 批准号:
    25670432
  • 财政年份:
    2013
  • 资助金额:
    $ 9.84万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Broadband single-shot imaging spectroscopy using a micro-step echelon optics
使用微步梯形光学器件的宽带单次成像光谱
  • 批准号:
    23241034
  • 财政年份:
    2011
  • 资助金额:
    $ 9.84万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
To develop and put into practice the English-teaching materials that lay emphasis on the characteristics of KOSEN students and their English learning.
开发并实施注重KOSEN学生特点和英语学习的英语教材。
  • 批准号:
    22320116
  • 财政年份:
    2010
  • 资助金额:
    $ 9.84万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Diabetes treatment increasing liver glucose uptake and decreasing fat accumulation
糖尿病治疗增加肝脏葡萄糖摄取并减少脂肪积累
  • 批准号:
    22390184
  • 财政年份:
    2010
  • 资助金额:
    $ 9.84万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Broadband Single-Shot Real-Time Imaging of Nonlinear Optical Responses in Low-Dimensional and Strongly-Correlated Electrons
低维和强相关电子非线性光学响应的​​宽带单次实时成像
  • 批准号:
    22654034
  • 财政年份:
    2009
  • 资助金额:
    $ 9.84万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
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