Laser induced effects in PbO–Bi2O3–Ga2O3–BaO: Eu glasses

✍ Scribed by A.H. Reshak; G. Lakshminarayana; G. Proskurina; V.G. Yushanin; S. Calus; M. Chmiel; R. Miedzinski; M.G. Brik

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 282 KB
• Volume: 283
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2010.04.013

✦ Synopsis

We have observed a several times enhancement of the optical second harmonic generation in newly synthesized Europium doped PbO-Bi 2 O 3 -Ga 2 O 3 -BaO glasses for the fundamental wavelength 1320 nm during optical treatment by coherent fundamental and doubled frequency beams with a pulse duration about 15 ns. We have found that the maximal optical second harmonic generation was achieved for the Eu content of about 1.4% at fundamental beam average power equal to about 3 GW/cm 2 , temperature of about 300 K and intensity ratio between the fundamental and doubled frequency beams of about 9. Frequency repetition of the optical pulses was equal to about 10 Hz. It was shown that doping by other rare earth ions, particularly by Dysprosium does not give a sufficient contribution to the effect.