Rapid calculation method for realizing tight focusing of partially coherent light
The invention discloses a rapid calculation method for realizing tight focusing of partially coherent light. The method comprises the following steps: S10, enabling one part of coherent light beam tobe expanded into a plurality of completely coherent sub light sources and enabling the plurality of c...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a rapid calculation method for realizing tight focusing of partially coherent light. The method comprises the following steps: S10, enabling one part of coherent light beam tobe expanded into a plurality of completely coherent sub light sources and enabling the plurality of completely coherent sub light sources to be independent from each other; S20, enabling the pluralityof completely coherent sub light sources to respectively pass through a tight focusing system and acquiring tight focusing light field distribution respectively corresponding to the plurality of completely coherent sub light sources by utilizing a tight focusing fast algorithm; S30, carrying out incoherent superposition on the obtained distribution of the plurality of tightly focused light fieldsto obtain a superposed total light field so as to obtain tightly focused focal field distribution under the partially coherent light beam incident condition. According to the disclosed method, the quadruple integral form of a |
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