Frequency conversion, nonlinear absorption and carrier dynamics of GaSe:B/Er crystals

被引：7

作者：

Yuksek, Mustafa ^{[1
]}

Karatay, Ahmet ^{[2
]}

Ertap, Huseyin ^{[3
]}

Elmali, Ayhan ^{[2
]}

Karabulut, Mevlut ^{[4
]}

机构：

[1] Kafkas Univ, Dept Elect & Elect Engn, Fac Engn, TR-36100 Kars, Turkey

[2] Ankara Univ, Dept Engn Phys, Fac Engn, TR-06100 Ankara, Turkey

[3] Kafkas Univ, Fac Sci & Letters, Dept Phys, TR-36100 Kars, Turkey

[4] Gebze Tech Univ, Nat Sci Fac, Dept Phys, TR-41400 Gebze, Kocaeli, Turkey

来源：

OPTICAL MATERIALS | 2017年 / 66卷

关键词：

Frequency conversion; Nonlinear absorption; Carrier dynamics; GaSe; Erbium; Boron; 2-PHOTON ABSORPTION; OPTICAL-PROPERTIES; GALLIUM SELENIDE; SHG; SEMICONDUCTORS; ANISOTROPY;

D O I：

10.1016/j.optmat.2017.02.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We aimed to investigate the influence of Er3+ rare earth element on the frequency conversion wavelength in boron doped GaSe crystals. It was found that by substitution of Er3+ with B3+, SHG signal shifted to higher wavelength. In addition, the nonlinear absorption properties and ultrafast dynamics of pure, 0.5 at% B3+ and 0.25 at% B3+ + 0.25 at% Er3+ doped GaSe cristals have been studied by open aperture Z-scan and ultrafast pump probe spectroscopy techniques. All of the studied crystals showed nonlinear absorption (NA). It was observed that 0.5 at% B3+ doped GaSe crystal showed bleach signal. This signal switched to NA signal with long life after substitution of 0.25 at% Er3+ with 0.25 at% B3+. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：137 / 141

页数：5

共 24 条

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