Generation of achromatic Bessel beams using a compensated spatial light modulator.
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.
Leach
Jonathan
J
Gibson
Graham M
GM
Padgett
Miles J
MJ
Esposito
Elric
E
McConnell
Gail
G
Wright
Amanda J
AJ
Girkin
John M
JM