Spatial phase dislocations in femtosecond laser pulses
We show that spatial phase dislocations associated with optical vortices can be embedded in femtosecond laser beams by computer-generated holograms, provided that they are built in a setup compensating for the introduced spatial dispersion of the broad spectrum. We present analytical results describing two possible arrangements: a dispersionless 4𝒇 setup and a double-pass grating compressor. Experimental results on the generation of optical vortices in the output beam of a 20 fs Ti:sapphire...[Show more]
|Collections||ANU Research Publications|
|Source:||Journal of the Optical Society of America B|
|01_Bezuhanov_Spatial_Phase_2006.pdf||865.6 kB||Adobe PDF|
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