Photonic nanojets

Zhigang Chen*, Allen Taflove, Vadim Backman

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


A study was done on localized photonic nanojets generated at the shadow-side surfaces of micron-scale, circular dielectric cylinders illuminated by a plane wave. Using high resolution finite difference time domain (FDTD) numerical modeling, it was found that photonic nanojets had waists smaller than the diffraction limit and propagated over several optical wavelengths without significant diffraction. It was also found that such nanojets could enhance the backscattering of visible light by nanometer-scale dielectric particles located within the nanojets by several orders of magnitude. The ability of the photonic nanojets to provide a new means to detect and image nanoparticles of size well below the diffraction limit was demonstrated.

Original languageEnglish (US)
Pages (from-to)1923-1926
Number of pages4
JournalIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
StatePublished - Sep 29 2004
EventIEEE Antennas and Propagation Society Symposium 2004 Digest held in Conjunction with: USNC/URSI National Radio Science Meeting - Monterey, CA, United States
Duration: Jun 20 2004Jun 25 2004

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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