Index of Measures

Laser induced damage threshold (fluence)
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Laser-induced damage threshold (LIDT) measurements of optical components

DLR Institute of Technical Physics

According to DIN EN ISO 21254-1:2011 and DIN EN ISO 21254-2:2011 optical components are irradiated with pulsed laser light and the occurrence of damage is monitored online by scattering light detection. In case of tests in vacuum pressure detection is used in addition. Any change observable under Nomarski microscope is defined as a laser-induced damage. The system has a detection resolution in the order of µm damage size.

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