We have measured the nonlinear refractive-index coefficient γ interferometrically at 355 nm in fused silica and in BK-10, a borosilicate crown glass. These measurements are the first reported direct ultraviolet measurements of the nonlinear index of refraction in any transparent glass. Our results are γ = (2.5 ± 1.2) × 10−16 cm2/W and γ = (1.7 ± 0.8) × 10−16 cm2/W, respectively, for fused silica and BK-10.
© 1984 Optical Society of America
Original Manuscript: August 22, 1983
Manuscript Accepted: October 28, 1983
Published: January 1, 1984
W. T. White, W. L. Smith, and D. Milam, "Direct measurement of the nonlinear refractive-index coefficient γ at 355 nm in fused silica and in BK-10 glass," Opt. Lett. 9, 10-12 (1984)