CONFOCAL MICROSCOPY WITH AN INCREASED DETECTION APERTURE - TYPE-B 4PI CONFOCAL MICROSCOPY
CONFOCAL MICROSCOPY WITH AN INCREASED DETECTION APERTURE - TYPE-B 4PI CONFOCAL MICROSCOPY
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DOI:
10.1364/ol.19.000222
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发表时间:
1994-02-01
期刊:
影响因子:
3.6
通讯作者:
CREMER, C
中科院分区:
文献类型:
--
作者:
HELL, SW;STELZER, EHK;CREMER, C
We show the point-spread function of a confocal microscope with an increased detection aperture. The increase in aperture is accomplished by coherent collection of the light from the specimen with two opposing objective lenses, i.e., type-B 4Pi confocal microscopy. We demonstrate experimentally its feasibility for detecting scattered or fluorescently emitted light. The 4Pi confocal point-spread functions are shown for constructive and destructive interference of the collected wave fronts and are compared with the point-spread functions of comparable confocal microscopes.