✦ LIBER ✦
Two-photon absorption properties of crystalline KNbO3 at 430 nm and efficient high pulse energy blue second-harmonic generation
✍ Scribed by A. Major; D. Hutchings; N. Langford; A.I. Ferguson; J.S. Aitchison; P.W.E. Smith
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 76 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1612-2011
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✦ Synopsis
We report on z-scan characterization of the twophoton absorption properties of crystalline potassium niobate at 430 nm. The value of the two-photon absorption coefficient was found to be ∼ 4.3 cm/GW. Furthermore, we demonstrate efficient (> 60%) noncritically-phase-matched second harmonic generation at 430 nm with subpicosecond pump pulses. SH energy, μJ 3.0 Efficiency, % 2.5 60 2.