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|Title:||Optical properties and ultrafast optical nonlinearity of Yb3+doped sodium borate and bismuthate glasses|
Suchand Sandeep, C.S.
|Publisher:||American Institute of Physics|
|Citation:||Journal of Applied Physics, 2008, Vol.103, 103509|
|Abstract:||In this paper, we report the optical and ultrafast nonlinear optical properties of Yb3+ doped sodium borate and bismuthate glasses. The glasses have been prepared through the melt quench technique. Optical absorption measurements show compositional dependent absorption spectrum of Yb3+, which is due to the higher crystal field induced by Bi3+ ions. Local structure of the glasses has been identified by using Fourier transform infrared and Raman studies. From open aperture z-scan measurements done by using 100 fs laser pulses, the ultrafast optical nonlinearity in these materials is calculated at the nonresonant excitation wavelength of 800 nm. The measured three-photon absorption originates from the glass host, with contributions from the nonbridging oxygens and the nonlinear electronic polarization of the Bi3+ ions.|
|Copyright:||2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.|
|Appears in Collections:||Research Papers (LAMP)|
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