Cw. Chan et Wk. Lee, MEASUREMENT OF A LIQUID REFRACTIVE-INDEX BY USING HIGH-ORDER RAINBOWS, Journal of the Optical Society of America. B, Optical physics, 13(3), 1996, pp. 532-535
High-order rainbows, formed by a pendant drop, with an order number as
high as 32 have been observed, to our knowledge, for the first time.
We measured the refractive index of distilled-water drops, with an acc
uracy of similar to 2 parts in 10(4), by exploiting some of the high-o
rder rainbows. (C) 1996 Optical Society of America