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Thermally Tunable Polymer Microlenses for Biological Imaging
Huang, Xian1; Ni, Junhui1; Yan, Shengmei2; LeDuc, Philip R.3; Yao, Jun2; Lin, Qiao1
Indexed BySCI
WOS IDWOS:000284875400018
AbstractWe 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.
KeywordBiological Imaging Indium Tin Oxide (Ito) Microlens Thermal Expansion Tunable Optics
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic ; Engineering, Mechanical
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Document Type期刊论文
Affiliation1.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
GB/T 7714
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.
APA Huang, Xian,Ni, Junhui,Yan, Shengmei,LeDuc, Philip R.,Yao, Jun,&Lin, Qiao.(2010).Thermally Tunable Polymer Microlenses for Biological Imaging.JOURNAL OF MICROELECTROMECHANICAL SYSTEMS,19(6),1444-1449.
MLA Huang, Xian,et al."Thermally Tunable Polymer Microlenses for Biological Imaging".JOURNAL OF MICROELECTROMECHANICAL SYSTEMS 19.6(2010):1444-1449.
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