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Frequency conversion, nonlinear absorption and carrier dynamics of GaSe:B/Er crystals       
Yazarlar
Mustafa Yüksek
Kafkas Üniversitesi, Türkiye
Ahmet Karatay
Ankara Üniversitesi, Türkiye
Doç. Dr. Hüseyin ERTAP Doç. Dr. Hüseyin ERTAP
Kafkas Üniversitesi, Türkiye
Ayhan Elmalı
Ankara Üniversitesi, Türkiye
Mevlüt Karabulut
Gebze Teknik Üniversitesi, Türkiye
Özet
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 crystals 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+.
Anahtar Kelimeler
Frequency conversion | Nonlinear absorption | Carrier dynamics | GaSe | Erbium | Boron
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı OPTICAL MATERIALS
Dergi ISSN 0925-3467
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 04-2017
Cilt No 66
Sayı 1
Sayfalar 137 / 141
Doi Numarası 10.1016/j.optmat.2017.02.007
Makale Linki http://dx.doi.org/10.1016/j.optmat.2017.02.007