Linear and third order nonlinear optical properties of LiRbB4O7 single crystal

• LiRbB4O7 single crystal has been grown by the Czochralski method.
• Crystalline perfection of the grown LiRbB4O7 crystal is analyzed by high resolution X-ray diffraction.
• Third-order nonlinear optical parameters of crystal are determined.
• Self-defocusing effect of LiRbB4O7 crystal is observed.

Lithium rubidium borate (LiRbB4O7) single crystal has been grown by the Czochralski method. Crystalline perfection and optical homogeneity of the grown LiRbB4O7 crystal are analyzed by high resolution X-ray diffraction and birefringence interferometric technique, respectively. Third order nonlinear optical parameters of LiRbB4O7 crystal are determined by Z-scan experimental technique. The nonlinear refractive index (n2) and third-order nonlinear optical susceptibility (χ3) are estimated to be −4.935 × 10−11 cm2/W and 2.719 × 10−7 esu, respectively. The measured (n2) value reveals the self-focusing nature of LiRbB4O7 crystal.

High-resolution X-ray diffraction curves of LiRbB4O7 crystal (a) near the seed (b) middle region of grown crystal.Figure optionsDownload as PowerPoint slide