Investigating the Long-Term Stability of LiB3O5 (LBO) Frequency Conversion Crystals at 355nm using Photothermal Deflection and LIDT measurements

In order to gain an understanding of the fluctuating long-term stability of LBO crystals, photothermal deflection measurements are used to identify absorbing impurities and defects, followed by multiple pulse LIDT testing to identify possible correlations.