Enhanced resonant nonlinear absorption and optical limiting in Er3+ ions doped multicomponent tellurite glasses
- School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam, 686 560 (India)
- Photonics Laboratory, Tampere University of Technology, P.O. Box 692, FI-33101, Tampere (Finland)
Highlights: • Nonlinear optical properties of TPBKZFEr glasses investigated by Z-scan technique. • Optical limiting property of the TPBKZFEr glasses is studied for the first time. • Nonlinearity of the prepared glasses found to be enhanced with Er{sup 3+} concentration. • The mechanism behind the nonlinear properties is successfully explained. • It is evident that these glasses can be developed as tunable optical limiters. - Abstract: Nonlinear optical properties of multicomponent tellurite glasses doped with Er{sup 3+} ions were investigated by open aperture Z-scan measurements. Compositional and linear optical properties of the glasses were examined by the energy dispersive X-ray spectrum and UV–vis–NIR absorption spectrum analysis respectively. The mechanism behind the optical nonlinearity and optical limiting efficiency was successfully explained by evaluating the physical properties such as density, refractive index and polarizability of the glasses. The nonlinear properties critically depend on the polarizability, which is found to increase with the addition of Er{sup 3+} ions by the creation of non-bridging oxygen ions. By the systematic addition of Er{sup 3+} ions, we have dictated the physical properties and thus tuned the optical limiting efficiency of the glasses. This makes the Er{sup 3+}-doped multicomponent tellurite glasses flexible tunable optical limiters for potential device applications.
- OSTI ID:
- 22805154
- Journal Information:
- Materials Research Bulletin, Vol. 104; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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