Logo printed by 2-Photon Polymerisation

07 Jun 2018

Read how the taccor tune is an ideal source for the two-photon polymerisation process: Operating at 800 nm central wavelength, 100 mW power and with a repetition rate of 1 GHz (pulse energy of 100 pJ)

The Additive Manufacturing Technologies group at the Vienna University of Technology (TU Wien) has been testing a taccor tune ultrafast laser, using the two-photon polymerisation process. It is the development of ultrafast lasers that is enabling new research possibilities based on non-linear interactions.

Two-photon polymerisation occurs when pulses are focused into a photosensitive material and this initiates the process via two-photon absorption. After the illumination, the 3-D structure from photopolymerised material remains formed as such, and the non-illuminated materials are removed.

This technique can be linked to a computer to generate specific 3-D generated shapes. Control of this process is determined by the control of the laser pulse energy and the number of pulses applied. Using this process TU Wien, created the LQ logo in ETA/TTA with 5 mM M2CMK material, with a scanning speed of 100 mm/s, a line distance of 200 nm and layer distance of 200 nm. The taccor tune laser was operating at 800 nm central wavelength, 100 mW power, with a repetition rate of 1 GHz (pulse energy of 100 pJ) and delivered through the objective Zeiss 32 x 085 W.

Find out more about the taccor tune by clicking here.