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System and method for curved light sheet projection during two-photon polymerization

Patent ·
OSTI ID:1859971

A laser-based manufacturing system is disclosed for fabricating non-planar three-dimensional layers. The system may have a laser for producing a laser beam with a plurality of optical wavelengths. An optically dispersive element may be used for receiving the laser beam and splitting the beam into a plurality of distinct beam components, wherein each beam component has spatially separated optical spectral components. A phase mask may be used which is configured to receive at least one of the beam components emerging from the dispersive element and to create a modified beam. One or more focusing elements may then be used to receive the modified beam emerging from the phase mask and to focus the modified beam into a non-planar light sheet for use in fabricating a part.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
11,150,484
Application Number:
15/983,872
OSTI ID:
1859971
Country of Publication:
United States
Language:
English

References (7)

Fabrication of microscale medical devices by two-photon polymerization with multiple foci via a spatial light modulator journal January 2011
Projection two-photon polymerization using a spatial light modulator journal November 2014
Holographic multi-focus 3D two-photon polymerization with real-time calculated holograms journal January 2014
Single-exposure multiphoton fabrication of polygonized structures by an SLM-modulated Fresnel zone lens journal March 2016
Fast multiphoton microfabrication of freeform polymer microstructures by spatiotemporal focusing and patterned excitation journal January 2012
Single-pulse multiphoton polymerization of complex structures using a digital multimirror device journal January 2013
Parallel direct laser writing of micro-optical and photonic structures using spatial light modulator journal July 2015

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