We report the creation of white-light, achromatic Bessel beams using a spatial light modulator and a prism to compensate for the dispersion. Unlike the Bessel beam created by a refractive axicon, this achromatic beam has a radial wavevector and hence an intensity cross-section which is independent of wavelength. The technique also lends itself to the generation of higher order Bessel beams with an on-axis optical vortex and associated orbital angular momentum.
No takes yet. Share an insight, caveat, or question.
Leach et al. (2006) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: