
436
Laser-Induced Damage in Optical Materials
However, the rugate notch lter corresponds to the empirical RISED applying a
gradual layer. e damage threshold of the component is displayed in Figure 15.29. e
LIDT is signicantly higher than the conventional TiO
2
/SiO
2
stack, but the threshold
of the RISED design is not achieved. It has to be mentioned that the periodicity of the
design structure is still approximately a QWoT, but it is no longer expedient to call the
design QWoT design.
e possibility of the stack optimization using a gradual design has to be discussed.
In contrast to the RISED optimization, with respect to the distribution of ...