Improved High Collection Efficiency in Fluorescence Microscopy with a Weierstrass-Sphere Solid Immersion Lens
Improved High Collection Efficiency in Fluorescence Microscopy with a Weierstrass-Sphere Solid Immersion Lens
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DOI:
10.1143/jjap.41.l858
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发表时间:
2002-07
影响因子:
1.5
通讯作者:
M. Yoshita;Kazuko Koyama;Y. Hayamizu;M. Baba;H. Akiyama
中科院分区:
文献类型:
--
作者:
M. Yoshita;Kazuko Koyama;Y. Hayamizu;M. Baba;H. Akiyama
We investigate improvements of the collection efficiency in fluorescence microscopy with a Weierstrass-sphere solid immersion lens (SIL). Using a Weierstrass-sphere SIL with refractive index n=1.845 and an objective lens with 0.55 numerical aperture, we demonstrate the high collection efficiency of fluorescence from 0.11-µm-diameter dye-doped microsphere bead samples, which is 21 times higher than that measured in conventional microscopy and is estimated to be 76%. Illumination uniformity and aberrations in Weierstrass-sphere SILs are also evaluated.