Numerical modeling of photonic nanojet behind dielectric microcylinder

0354494 - ÚIACH 2011 RIV DE eng C - Konferenční příspěvek (zahraniční konf.)
Maděránková, D. - Provazník, I. - Klepárník, Karel
Numerical modeling of photonic nanojet behind dielectric microcylinder.
Medical Physics and Biomedical Engineering, World Congress 2009. Mnichov: VDE Conference Services, 2009, s. 1-4. ISBN 978-3-642-03881-5.
[Medical Physics and Biomedical Engineering, World Congress 2009. Mnichov (DE), 07.09.2009-12.09.2009]
Grant CEP: GA ČR GA203/08/1680
Výzkumný záměr: CEZ:AV0Z40310501
Klíčová slova: photonic nanojet * FDTD method
Kód oboru RIV: CB - Analytická chemie, separace

We studied the influence of the refractive index contrast, the incident plane wave wavelength and the microcylinder diameter on the position of the maximum of photonic nanojet electric field for microscopy and spectroscopy biomedical applications. The photonic nanojet is a propagative optical feature originating behind micro-sized dielectric sphere or cylinder when it is illuminated by a plane wave. This pheno-menon can potentially break the diffraction limit of microscop-ic methods. Broad range of scientific area could profit from photonic nanojets, especially material sciences, analytical chemistry and biomedical sciences. We can summarize that the distance increases nearly linear-ly with decreasing refractive index and increasing diameter of the cylinder and increases with the wavelength of the illumina-tion. The results can potentially be used for the design of pho-tonic nanojet experiments.
Trvalý link: http://hdl.handle.net/11104/0193482