6533b832fe1ef96bd129ad8e
RESEARCH PRODUCT
Three-dimensional field distribution in the focal region of low-Fresnel-number axicons.
Carlos J. Zapata-rodríguezAgustín Sánchez Losasubject
PhysicsWavefrontGeometrical opticsbusiness.industryAstrophysics::Instrumentation and Methods for AstrophysicsPhysics::OpticsConical surfaceAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsAxiconOpticsBessel beamFresnel numberComputer Vision and Pattern RecognitionPhase velocitybusinessLocal fielddescription
Three-dimensional intensity and phase distributions generated by microaxicons are evaluated in the low-Fresnel-number regime. Apertured and nonapertured conical wavefronts may generate transverse patterns with notable deviations from the expected nondiffracting Bessel beam. First-order analytical expressions are proposed for the evaluation of the wave field produced by axicons of different Fresnel number in the focal region.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-11-16 | Journal of the Optical Society of America. A, Optics, image science, and vision |