As LCP is passed through Q-plate, its polarization-SAM changes to RCP along with a
gain of OAM. Since total angular momentum is the sum of SAM+OAM, is the angular momentum conserved in this process?
Ebrahim Karimi
Dear Dipti,
It is depend on the symmetry of the LC cell - if it is cylindrically symmetry your answer will be yes. But, in other cases the change of Angular Momentum induces a rotation on the cell and one would expect to see a rotation.
Cheers,
Ebrahim
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Dipti Banerjee
Dear Karimi,
Thanks for this answer. In any birfringent system twisted by theta, introduces a rotation of 2theta to RCP/LCP. Whether it is true experimentally.
Nonconservation of angular momentum of photon takes place in which cases.
Bye
Dipti
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