Lowering the Lasing Threshold by Introducing Cholesteric Liquid Crystal Films to Dye-Doped Cholesteric Liquid Crystal Cell Surfaces
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概要
- 論文の詳細を見る
The effect of the introduction of polymer cholesteric liquid crystal (PCLC) films on the threshold of dye-doped cholesteric liquid crystal (CLC) distributed feedback (DFB) cavity lasing has been investigated. A PCLC film used to reflect a pump beam brings about the efficient use of incident energy, whereas a PCLC film used to reflect the emission contributes to amplifying the stimulated emission. As a result, the cell, in which both PCLC films are introduced, gains about a 60% reduction in the lasing threshold. It is also found that a lasing threshold exists not only for the excitation energy but also for the emission intensity. Namely, the lasing starts to occur at a certain emission level irrespective of the cell structures.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-11-15
著者
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Amemiya Kazuhiro
Department Of Organic And Polymeric Materials Tokyo Institute Of Technology
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Takanishi Yoichi
Department Of Organic And Polymeric Materials Tokyo Institute Of Technology
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Takezoe Hideo
Department Of Organic And Polymeric Materials Tokyo Institute Of Technology
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西村 涼
慶応義塾大学理工学部
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Nishimura Suzushi
Central Technical Research Laboratory, JX Nippon Oil & Energy Corporation, Yokohama 231-0815, Japan
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Song Myoung
Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
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Toyooka Takehiro
Central Technical Research Laboratory, JX Nippon Oil & Energy Corporation, Yokohama 231-0815, Japan
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Amemiya Kazuhiro
Department of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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ISHIKAWA Ken
Department of Applied Physics, University of Tokyo
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