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News Link • Science, Medicine and Technology

Lawrence Livermore unlocks 3D printing to smaller than 150 nanometer features

• arclein

Two-photon lithography typically requires a thin glass slide, a lens and an immersion oil to help the laser light focus to a fine point where curing and printing occurs. It differs from other 3D-printing methods in resolution, because it can produce features smaller than the laser light spot, a scale no other printing process can match. The technique bypasses the usual diffraction limit of other methods because the photoresist material that cures and hardens to create structures - previously a trade secret . simultaneously absorbs two photons instead of one.

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