Picosecond nonlinearity of GeO2–Bi2O3–PbO–TiO2 glasses at 532 and 1,064 nm

The third-order optical properties of GeO 2 –Bi 2 O 3 –PbO–TiO 2 glasses at 532 nm and 1,064 nm were studied to evaluate their potential for optical limiting and all-optical switching. The Z-scan technique was used to determine the nonlinear (NL) refractive index, n 2 , and the NL absorption coeffic...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2014-12, Vol.117 (3), p.891-895
Main Authors: Besse, Valentin, Fortin, Alexandre, Boudebs, Georges, Valle, Paula S., Nalin, Marcelo, de Araújo, Cid B.
Format: Article
Language:English
Subjects:
Engineering
Lasers
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
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Summary:The third-order optical properties of GeO 2 –Bi 2 O 3 –PbO–TiO 2 glasses at 532 nm and 1,064 nm were studied to evaluate their potential for optical limiting and all-optical switching. The Z-scan technique was used to determine the nonlinear (NL) refractive index, n 2 , and the NL absorption coefficient, α 2 , of samples with different amounts of the constituent oxides. Values of n 2  ≈ + 0.7 × 10 −14 cm 2 /W at 1,064 nm and ≈+1.5 × 10 −14 cm 2 /W at 532 nm were measured. The NL absorption coefficient, α 2 , was smaller than the minimum that our apparatus can measure ( α 2  
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-014-5905-z