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题名:
Thermally Tunable Polymer Microlenses for Biological Imaging
作者: Huang, Xian1; Ni, Junhui1; Yan, Shengmei2; LeDuc, Philip R.3; Yao, Jun2; Lin, Qiao1
刊名: JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
出版日期: 2010-12-01
卷号: 19, 期号:6, 页码:1444-1449
关键词: Biological imaging ; indium tin oxide (ITO) ; microlens ; thermal expansion ; tunable optics
文章类型: Article
英文摘要: We present polydimethylsiloxane (PDMS) microlenses capable of thermally tuning their focal lengths via optically transparent indium tin oxide (ITO) microheaters. Microlenses with various diameters are created by molding PDMS over microstructures of reflowed photoresist. Due to a relatively large thermal expansion coefficient, these PDMS microlenses exhibit measurable thermal expansion with relatively small temperature changes. By adjusting the temperature of the microlenses using ITO microheaters, we can actively control their radii of curvature and focal lengths without requiring moving mechanical components. To demonstrate the tunability of the microlenses, we characterize temperature-dependent changes by focal length and magnification factor measurements. We also investigate the ability to use the microlenses for tunable observation of cells, demonstrating their potential application to biological imaging.
WOS标题词: Science & Technology ; Technology
类目[WOS]: Engineering, Electrical & Electronic ; Engineering, Mechanical
研究领域[WOS]: Engineering
关键词[WOS]: LIQUID MICROLENS ; ARRAY ; LENS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000284875400018
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3362
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Columbia Univ, Dept Mech Engn, New York, NY 10027 USA
2.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China
3.Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15213 USA

Recommended Citation:
Huang, Xian,Ni, Junhui,Yan, Shengmei,et al. Thermally Tunable Polymer Microlenses for Biological Imaging[J]. JOURNAL OF MICROELECTROMECHANICAL SYSTEMS,2010,19(6):1444-1449.
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