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Laser-Induced Damage in Optical Materials
6.3.5 Raster Scan Test
33,34
In the aforementioned three testing methods, sampling was performed on a number of
random sites on the specimen. erefore, the precision of this testing method is primar-
ily inuenced by the total number of sampling sites. However, some cases demand a
more detailed evaluation of the damage behavior over the whole surface of the sample.
is requirement can be satised by performing the raster scan test.
As illustrated in Figure 6.18, the raster scan test method is performed by zigzag
movement of the testing optics through a stationary laser beam. e uence of the laser
bea ...