Improvement of Axial Resolution in Confocal Microscopy by an
Optical Pupil Filter with Two Zones Phase-Shifted by π
LIN Lie, WANG Xiang-Hui, WANG Zhao-Qi, MU Guo-Guang
United Academy of Nankai University and Tianjin University,
Institute of Modern Optics, Nankai University, Tianjin 300071
Key Laboratory of Opto-electronic Information Science and Technology of Education Ministry, Nankai University, Tianjin 300071
Improvement of Axial Resolution in Confocal Microscopy by an
Optical Pupil Filter with Two Zones Phase-Shifted by π
LIN Lie;WANG Xiang-Hui;WANG Zhao-Qi;MU Guo-Guang
United Academy of Nankai University and Tianjin University,
Institute of Modern Optics, Nankai University, Tianjin 300071
Key Laboratory of Opto-electronic Information Science and Technology of Education Ministry, Nankai University, Tianjin 300071
Abstract： A filter with two zones phase-shifted by π is proposed to improve the axial resolution of confocal microscopes with a finite-sized detector. The optimum axial resolution for a given size of the detector can be achieved by adjusting the zone boundary of the filter. The experimental results are well in agreement with the theoretical predictions.
LIN Lie;WANG Xiang-Hui;WANG Zhao-Qi;MU Guo-Guang. Improvement of Axial Resolution in Confocal Microscopy by an
Optical Pupil Filter with Two Zones Phase-Shifted by π[J]. 中国物理快报, 2003, 20(9): 1641-1643.
LIN Lie, WANG Xiang-Hui, WANG Zhao-Qi, MU Guo-Guang. Improvement of Axial Resolution in Confocal Microscopy by an
Optical Pupil Filter with Two Zones Phase-Shifted by π. Chin. Phys. Lett., 2003, 20(9): 1641-1643.
2003, Vol. 20 
