3D Printing

What is Two-Photon Absorption?

What is Two-Photon Absorption?

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

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.

1 min read

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, ion-beam lithography and Atomic force microscopy based lithographic technique. The

2 mins read
What is Two-Photon Absorption?

What is Two-Photon Absorption?

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

3 mins read