| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5007320 | Optics & Laser Technology | 2018 | 4 Pages |
Abstract
The influence of Ce3+ on the wavelength of second harmonic generation (SHG) signal in boron doped GaSe crystals have been investigated. We found that by substitution of Ce3+ with B3+, SHG signal shifted to lower wavelength. In addition, the nonlinear absorption (NA) properties and ultrafast dynamics of pure, 1Â at.% B3+ and 0.5Â at.% B3+Â +Â 0.5Â at.% Ce3+ doped GaSe crystals have been studied by open aperture Z-scan and ultrafast pump probe spectroscopy techniques. From the open aperture Z-scan experiments we observed that all of the crystals showed nonlinear absorption (NA). However, pump-probe experiments revealed that when GaSe crystal is doped, the NA signal turns into a bleaching signal with different lifetimes depending on the type and concentration of the dopant atoms.
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Authors
Ahmet Karatay, Mustafa Yuksek, Hüseyin Ertap, Ayhan Elmali, Mevlut Karabulut,