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Introduction to Micro Machining with Ultrashort Pulsed Lasers
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Knowledge Assessment
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Knowledge Assessment
Knowledge Assessment
Assess the knowledge you have acquired with this lesson
Question 1/4
Which types of lasers are referred to as 'ultrafast' or 'ultrashort pulsed' lasers?
lasers enabling ultrafast machining
CO2, Nd:YAG and excimer lasers
picosecond and femtosecond lasers
nanosecond and microsecond lasers
Question 2/4
What are the limitations using 'conventional' lasers for precise micromachining?
improper laser wavelengths
thermal and mechanical workpiece damage O improper laser beam diameter
There are no limitations.
Question 3/4
Using ultrafast lasers enables precise processing of what kind of materials?
nearly all kinds of solid materials
only materials with low hardness
only heat-insensitive solid materials
Question 4/4
What about the ablation threshold using ultrafast lasers?
It does not depend on the laser pulse length.
the shorter the laser pulses, the higher the ablation threshold
It is much lower compared to long pulse laser ablation.
