Interference of the 11th- and higher-order rainbows formed by a pendant water drop was studied by use of laser beams of wavelengths 632.8 and 532 nm. Time variations of the corresponding glare-point intensity, due to vibration of the droplet, are in agreement with results of a simple model calculation. Our results are compared with the “non-Debye enhancement” of the 11th-order rainbow reported by Lock and Woodruff.
© 2003 Optical Society of America
(010.1290) Atmospheric and oceanic optics : Atmospheric optics
(010.7340) Atmospheric and oceanic optics : Water
(260.3160) Physical optics : Interference
(290.5850) Scattering : Scattering, particles
Pak-hong Ng, Pui-yiu So, Chiu-wah Chan, and Wing-kee Lee, "Interference of the eleventh- and higher-order rainbows formed by a pendant water drop," J. Opt. Soc. Am. B 20, 2395-2399 (2003)