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ilent2 / ott

Optical Tweezers Toolbox (Version 1)
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Beam waist calculation for hg and ig beams #12

Closed ilent2 closed 6 years ago

ilent2 commented 6 years ago

What are the appropriate parameters for w0 for lg and hg beams? Is there a function to calculate this?

AStilg commented 6 years ago

lg_mode_w0 (in my fork, now) will do it for LG modes. For each degree of paraxial modes the beam waist is the same. The parameter input into that file would be: m+n=2p+abs(l)=\lambda etc.

More than this, bsc_pointmatch_farfield needs to (instead of using a polyfit) solves this iteratively as a step to undo the unholy tan aperture function.

AStilg commented 6 years ago

In 1.4 we will make bsc_pointmatch_farfield.m take an angle which should eliminate lg mode w0

AStilg commented 6 years ago

and... it's gone