6533b829fe1ef96bd128a586
RESEARCH PRODUCT
Diffraction-free beams in thin films
Juan Jose MiretCarlos J. Zapata-rodríguezsubject
DiffractionWave propagationPhysics::OpticsFOS: Physical sciencesPhysics - Classical PhysicsBesselsymbols.namesakeOpticsLight beamÓpticaPhysicsbusiness.industryBeamsClassical Physics (physics.class-ph)Physical opticsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsWavelengthsymbolsBessel beamComputer Vision and Pattern RecognitionbusinessOptical vortexBessel functionDiffraction-freePhysics - OpticsOptics (physics.optics)description
The propagation and transmission of Bessel beams through nano-layered structures has been discussed recently. Within this framework we recognize the formation of unguided diffraction-free waves with the spot size approaching and occasionally surpassing the limit of a wavelength when a Bessel beam of any order n is launched onto a thin material slab with grazing incidence. On the basis of the plane-wave representation of cylindrical waves, a simple model is introduced providing an exact description of the transverse pattern of this type of diffraction-suppressed localized wave. Potential applications in surface science are put forward for consideration. Ministerio de Ciencia e Innovación (MICIIN) under the project TEC2009-11635.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-10-29 |