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 […]Read more "An Introduction to Direct Laser Writing (DLW)"
Two-photon absorption (TPA) is the simultaneous absorption of two-photons of the same or different wavelenth by a material. In physics two-photon absorption is categorized as a third-order nonlinear optical phenomenon. The image on the left of Figure 1 shows fluorescence emitted through out the path of a laser in a photoactive solution. This fluorescence results […]Read more "What is Two-Photon Absorption?"
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 and spanning physics, mechanical engineering, and material science. It is with advances in […]Read more "Classic Papers about Direct Laser Writing"