Development of a dual-polarization-modulated comprehensive chiroptical spectrophotometer
| Project/Area Number |
18K05062
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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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| Review Section |
Basic Section 32020:Functional solid state chemistry-related
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| Research Institution | Oita University |
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Principal Investigator |
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | キラル / 変調偏光 / 円二色性 / 円偏光発光 / 偏光変調 / 円偏光蛍光 / キラリティ / 円偏光 / ２重変調 |
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| Outline of Final Research Achievements |
Aiming to devise a method to obtain the true-CPL optical properties of circularly polarized fluorescent (CPL) materials, which have attracted much attention in recent years, we aimed to construct a polarization analysis-free CPL spectrophotometer based on the dual modulation (DPM) method. A comparison of the performance of the developed spectrophotometer, which was built based on theoretical analysis, with that of an commercial available one showed that the performance was comparable, and it was clear that the key to smoothing the baseline was the synchronization of the frequencies of the two photoelastic modulators (PEMs). We reported in Rev. Sci. Instrum. (2020) that the DPM method can obtain the true-CPL signal without using complicated polarization analysis methods.
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| Academic Significance and Societal Importance of the Research Achievements |
本課題の達成により、多くの試料に対して、煩雑であった偏光解析が不要となり、３次元ディスプレイなどの有機電子素子開発、バイオ、エナンチオマー選択触媒・キラリティ認識などのナノケミストリー分野での応用だけでなく、CPL計測がキラル測定の新たなツールとしての汎用性が高まることが期待できる。また構築した計測技術を内外に幅広くキラル分光プラットフォームとして提供することで、多くの研究者が利用しCPL研究の飛躍的な進歩が予測される。当該キラル分子系分野の一助となることができ、飛躍的にキラリティ研究の進展が期待されるものと確信する。
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Report
(4 results)
Research Products
(37 results)
