Derivation of analytical coherent transfer function for a confocal microscope with arbitrary Toraldo filter |
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| Authors: | Tao Liu He Zhang Jian Liu |
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| Affiliation: | Center of Ultra-precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The Toraldo filter is one of the most widely investigated and used pupil filters for super-resolution focusing and imaging in both conventional wide-field microscopy and confocal scanning microscopy. The analytical coherent transfer function is therefore derived from convolution decomposition of a confocal microscope with arbitrary Toraldo filter. It is demonstrated using two typical examples that the mechanism of super-resolution or resolution improvement can be easily evaluated without numerical convolution calculation. |
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| Keywords: | Toraldo filter transfer function confocal microscopy super-resolution |
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