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| Sometimes dramatic changes occur in the beam profile versus power settings. With this Nd:YAG laser, from setting 1 to setting 2 the power increased by 150% (2.5×) but the peak intensity increased by only 27%, due mainly to the complete change in the profile, or intensity distribution, but also partly because the beam width increased by 31%. From setting 2 to setting 3 the power increased by 24%, but the peak intensity increased by only 5%. All images: Spiricon |
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