LP / Laser Processing

Laser processing is a single-step, maskless, tabletop method to create quasi-uniformly micro/nano-patterned surfaces over large areas. Surface micro/nano-patterning is a low-cost and rapid alternative to lithographic methods when precision and uniformity requirements are not highly demanding. A laser beam is focused on the surface of a solid material in air, vacuum, gas, or liquid environment and the laser parameters are optimized for scribing, surface texturing, micro/nanostructure formation, nanoparticle creation, etc. The sample can be translated with respect to the laser beam for large-area processing and there is no inherent limitation on the size of the processed area. Therefore, this method is scalable for real-world applications.

The home-built workstation includes a nanosecond Nd:YAG laser system (1064 and 532 nm) and optics, a vacuum chamber for processing in a gas atmosphere, and two xy computer-controlled motorized translation stages for large area processing.


Home-built laser processing workstation


Laser surface micro/nano-patterning, scribing, nanoparticle formation, etc.

Laser system

Q-switched nanosecond Nd:YAG laser (4 ns, 532 and 1064 nm, 10 Hz)

Vacuum System

Stainless steel vacuum chamber with gas inlet, quartz window, and rotary pump

Translation Stages

Computer controlled, motorized xy translation stages

Maximum Processed Area

2 inches in diameter

Additional Information

Dr. Maria Kandyla, kandyla@eie.gr

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