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Article

Nonlinear Optical Crystal Y_xLa_ySc_z(BO₃)₄ (x + y + z = 4)

Supporting Info

Ning Ye,^†^§ Jennifer L. Stone-Sundberg,^† Michael A. Hruschka,^† Gerard Aka,^‡ Wei Kong,^† and Douglas A. Keszler*^†

Department of Chemistry, Gilbert Hall 153, Oregon State University, Corvallis, Oregon 97331-4003, Ecole Nationale Suprieure de Chimie de Paris, 11, rue Pierre et Marie Curie, 75231 Paris Cedex 05, France, and Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China

Chem. Mater., 2005, 17 (10), pp 2687–2692

DOI: 10.1021/cm050090c

Publication Date (Web): April 15, 2005

†

Oregon State University.

Fujian Institute of Research on the Structure of Matter.

‡

Ecole Nationale Supérieure de Chimie de Paris.

To whom correspondence should be addressed. Phone: 541-737-6736. Fax: 541-737-2062. E-mail: douglas.keszler@oregonstate.edu.

Abstract

The new nonlinear optical crystal Y_xLa_ySc_z(BO₃)₄ (x + y + z = 4) has been discovered. Phase boundaries have been established in the determination of the x, y, z composition parameters that define the existence region of the trigonal huntite-type structure. From single-crystal X-ray diffraction measurements, the member Y_0.57La_0.72Sc_2.71(BO₃)₄ has been found to crystallize in space group R32 with cell dimensions a = 9.774(1) and c = 7.944(3) Å. Large single crystals have been grown by a high-temperature solution method. The high-energy optical absorption edge for polished pieces was found to be at a wavelength shorter than 200 nm. Sellmeier equations for the dispersion in the refractive indices were determined on the basis of curve fitting of data obtained by the method of minimum deviation. From modeling and optical measurements on powders, the nonlinear optical coefficient d₁₁ has been determined to be 1.4 pm/V.