2012 Fiscal Year Final Research Report
Laser Radiation by Soft Type Colloidal Crystals
| Project/Area Number |
23655212
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Polymer/Textile materials
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| Research Institution | Gifu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHASHI Shinya 岐阜大学, 工学部, 助教 (40377700)
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| Project Period (FY) |
2011 – 2012
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| Keywords | コロイド結晶 / レーザ発振 / 光閉じ込め効果 / ブラッグ反射 / 蛍光色素 |
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| Research Abstract |
Colloidal crystals were formed using aqueous dispersion of monodispersed colloidal spheres doped with fluorescence dyes. The Bragg reflection wavelengths of the crystals were matched with the fluorescent band of the dyes. Dye laser radiation from the crystals was observed by the excitation of a Nd:YAG laser pulse. Mixed type colloidal crystals were designed to attainthe spatial coherency and wavelength tuning of the laser radiation. The sphere ratio of the mixed type crystals changed systematically due to the segregation effects of drying dissipative structure of the colloidal systems.
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