Abstract
By focusing light with a sphere several wavelengths in diameter, we can obtain a photonic nanojet [Opt. Express 13, 526 (2005) ]: if light is focused on the surface of the sphere, the width of the beam stays smaller than the wavelength along a distance of propagation of approximately two wavelengths and reaches a high intensity. We use the rigorous Mie theory to analyze the basic properties of the photonic jet in the general three-dimensional polarized case. This fast algorithm allows us to determine the influence of the radius and the refractive index of the sphere on the photonic jet. The polarization response is also studied. We observe that high-intensity concentrations and subwavelength focusing are two different effects. Their basic properties are analyzed, and explanations are proposed.
© 2005 Optical Society of America
Full Article | PDF ArticleMore Like This
Alexis Devilez, Brian Stout, Nicolas Bonod, and Evgeny Popov
Opt. Express 16(18) 14200-14212 (2008)
Jonghwa Shin and Shanhui Fan
Opt. Lett. 30(18) 2397-2399 (2005)
Sylvain Lecler, Stefan Haacke, Nhan Lecong, Olivier Crégut, Jean-Luc Rehspringer, and Charles Hirlimann
Opt. Express 15(8) 4935-4942 (2007)