Nonlinear optical properties of Cr3+-doped lanthanum-magnesium hexa-aluminate LaMgAl11O19

✍ Scribed by H. Manaa

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 176 KB
• Volume: 2
• Category: Article
• ISSN: 1612-2011
• DOI: 10.1002/lapl.200510005

✦ Synopsis

A single beam Z-Scan technique is used to characterize
the nonlinear optical properties of Cr^3+^-doped
lanthanum-magnesium hexa-aluminate LaMgAl~11~O~19~ with c.w.
laser radiation at 514.5 nm. The real part n'
~2~ = 2.6 ×
10^-8^ cm^2^/W and the imaginary part n''
~2~ = - 1.1 ×
10^-9^ cm^2^/W of the laser induced complex refractive index
are measured. The excited state absorption cross-section is
deduced and found to be 3×10^-20^ cm^2^ at the same
wavelength.