Anisotropy of two-photon absorption in gallium selenide at 1064nm

• Published in: Optics communications Vol. 261; no. 1; pp. 60 - 64
• Main Authors: Allakhverdiev, K.R., Baykara, T., Joosten, S., Günay, E., Kaya, A.A., Kulibekov (Gulubayov), A., Seilmeier, A., Salaev, E.Yu
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.05.2006

The Bridgman method is used to grow single crystals of ε-GaSe. The two-photon absorption (TPA) coefficient β was measured for especially un-doped crystals at room temperature for the ordinary o-ray (β⊥) and extraordinary e-ray (β∥) using single-wavelength excitation by a Nd:YVO4 laser at 1.064μm wit...