An Introduction to Direct Laser Writing (DLW)

1. What is Two-Photon Direct Laser Writing (DLW)? Two-photon direct laser writing (DLW) is 3D printing for the microscopic world. This techniques goes beyond the smallest shapes and sizes that can be accomplished by garden variety 3D printing. The highest  resolution that can be achieved by DLW is typically few micron to sub-micron range. To

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What is Dip-in Two-photon Lithography ?

Dip-in two-photon lithography (DTPL) system was developed to overcome some limitations of the conventional TPL system (Figure 1). In dip-in two-photon lithography the lens is in direct contact with (dipped into) the sample. In the conventional TPL the laser is focused into

Classic Papers about Direct Laser Writing

Classic Papers about Direct Laser Writing

This post will introduce a roll call of classic papers about direct laser writing (DLW) in a chornological order, and talk briefly about their significance. Over the years there have been many papers that defined our understanding of this field of technology

A Castle on a Pencil Lead

This video demonstration of two-photon lithography (laser direct writing) shows the fabrication of a microscopic castle on top a pencil lead. It was produced and shared by the team led by Prof. Jurgen Stampfl at Technical University of Vienna. The video shows

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What is Dip-in Two-photon Lithography ?

Dip-in two-photon lithography (DTPL) system was developed to overcome some limitations of the conventional TPL system (Figure 1). In dip-in two-photon lithography the lens is in direct contact with (dipped into) the sample. In the conventional TPL the laser is focused into the sample through a thin transparent substrate.  Only transparent substrates could be used

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A Castle on a Pencil Lead

This video demonstration of two-photon lithography (laser direct writing) shows the fabrication of a microscopic castle on top a pencil lead. It

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How Small can we 3D Print?

Current techniques provide 3D printing of structures as small as few nanometers. Main candidates from producing complex 3D structures are two-photon lithography,

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A Castle on a Pencil Lead

This video demonstration of two-photon lithography (laser direct writing) shows the fabrication of a microscopic castle on top a pencil lead. It

More

How Small can we 3D Print?

Current techniques provide 3D printing of structures as small as few nanometers.