The spectrum of spatial frequencies (SFS) of Bessel beams properties emerging at their spatial localization is investigated. The case, when limiting aperture has a circular shape and a center at any distance from the optical axis, was studied. The Bessel beam local SFS was discovered to be radically changing at shifting the localization zone. Namely, a full ring transforms into a light arcs pair and its angular dimensions monotonically decreases as shift growth. The axis orientation of the spectrum maximal intensity coincides with the diaphragm shifting direction. The numerical modeling results agree well with the experiments.
Reference:
Belyi, VN, Kazak, NS, Forbes, A et al. 2009. Investigation of local spatial spectra of Bessel light beams. Laser Beam Shaping X Conference, San Diego, USA, 3-4 August 2009, pp 9
Belyi, V., Kazak, N., Khilo, N., Forbes, A., & Ropot, P. (2009). Investigation of local spatial spectra of Bessel light beams. Society of Photo-optical Instrumentation Engineers (SPIE). http://hdl.handle.net/10204/3810
Belyi, VN, NS Kazak, NA Khilo, A Forbes, and PI Ropot. "Investigation of local spatial spectra of Bessel light beams." (2009): http://hdl.handle.net/10204/3810
Belyi V, Kazak N, Khilo N, Forbes A, Ropot P, Investigation of local spatial spectra of Bessel light beams; Society of Photo-optical Instrumentation Engineers (SPIE); 2009. http://hdl.handle.net/10204/3810 .
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