Acta Optica Sinica, Volume. 23, Issue 8, 1021(2003)
Tunable Pupil Filters Applied to High Numerical Aperture Objectives
Based on vector diffraction theory, a new kind of tunable binary annular filters applied to high numerical aperture objectives is designed, and how to decide annular radius in order to increase axial resolution is discussed. Moreover, confocal microscopy is used to reduce the strength of secondary lobes. Numerical results show that this new kind of pupil filters can realize not only axial superresolution, but also not influence transverse resolution.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Tunable Pupil Filters Applied to High Numerical Aperture Objectives[J]. Acta Optica Sinica, 2003, 23(8): 1021