Working principle of dynamic z-scanning for auto-focusing (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Working principle of dynamic z-scanning for auto-focusing

Caption

Illustration of the working principle of dynamic z-scanning for auto-focusing. Dynamic beam shaping is achieved by a single TAG lens operating at 140-380kHz in a dual beam path setup (probing beam in green and fabrication beam in red).  The first laser is used to track the precise position of the surface as the system is scanning.  The second laser is synchronized to the TAG Lens such that a desired focal position is achieved on the surface.  

Credit

by Xiaohan Du, Camilo Florian, Craig B. Arnold

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Credit must be given to the creator.

License

CC BY

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