The detailed optics of photonic nanojets generated by normal plane-wave incidence on dielectric cylinders is discussed. These nanojets have a subwavelength beam waist and propagate with little divergence for several wavelengths. A physical explanation for this peculiar behavior is presented. Characteristic dimensions of the nanojets for a large range of physical parameters are calculated.
© 2005 Optical Society of America
Original Manuscript: February 2, 2005
Revised Manuscript: April 18, 2005
Manuscript Accepted: May 16, 2005
Published: December 1, 2005
A. V. Itagi and W. A. Challener, "Optics of photonic nanojets," J. Opt. Soc. Am. A 22, 2847-2858 (2005)