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Characteristics of stand-alone microlenses in fiber-based fluorescence imaging applications
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10.1063/1.3581217
/content/aip/journal/rsi/82/4/10.1063/1.3581217
http://aip.metastore.ingenta.com/content/aip/journal/rsi/82/4/10.1063/1.3581217
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The molded microlens: (a) top view, (b) bottom view, (c) side view, and (d) image profile of the top surface.

Image of FIG. 2.
FIG. 2.

Microlens focal length measurement: (a) schematic diagram of the optical setup and (b) actual prototype.

Image of FIG. 3.
FIG. 3.

The setup using for determining the imaging power of lenses: (a) schematic diagram and (b) actual prototype.

Image of FIG. 4.
FIG. 4.

Optical setup used for analyzing the fluorescence collection efficiency: (a) schematic and (b) actual prototype.

Image of FIG. 5.
FIG. 5.

The imaging system using the microlens-ended fiber: (a) schematic diagram and (b) actual prototype.

Image of FIG. 6.
FIG. 6.

Schematic of the endoscopic probe.

Image of FIG. 7.
FIG. 7.

Images and light distributions taken at different distances from lens surface: (a) at 100 μm distance form lens surface, (b) at 600 μm distance form lens surface, (c) at 1000 μm distance form lens surface, and (d) at focal point.

Image of FIG. 8.
FIG. 8.

Image of the last four element of group number (a) when microlens is attached to the fiber facet and (b) without the microlens.

Image of FIG. 9.
FIG. 9.

Comparison between spectrum of the collected light from the fluorescent target when the microlens is attached to the fiber and when it is not attached.

Image of FIG. 10.
FIG. 10.

The spectrum collected by four different lenses.

Image of FIG. 11.
FIG. 11.

The spectrum collected in different “d” values.

Image of FIG. 12.
FIG. 12.

Images taken from the microsphere sample at working distance of 10 mm: (a) with lens and (b) without lens.

Image of FIG. 13.
FIG. 13.

Images of the microspheres in different planes at (a) 11.2 mm, (b) 9.2 mm, and (c) 7.2 mm distance from the probe.

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/content/aip/journal/rsi/82/4/10.1063/1.3581217
2011-04-26
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Characteristics of stand-alone microlenses in fiber-based fluorescence imaging applications
http://aip.metastore.ingenta.com/content/aip/journal/rsi/82/4/10.1063/1.3581217
10.1063/1.3581217
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