Journal
OPTICS EXPRESS
Volume 14, Issue 12, Pages 5581-5587Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.14.005581
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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. (c) 2006 Optical Society of America.
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