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Conservation of Orbital Angular Momentum in Degenerate Four-wave Mixing via Rubidium Vapor

Yang, Kangning
Abstract
We present an experimental platform which can generate quantum-correlated beams with Orbital Angular Momentum (OAM) via degenerate Four-Wave Mixing (FWM) in Rubidium vapor. We further investigated the conservation of OAM before and after FWM by performing LG mode decomposition using interferometer. To compare our experimental result with theoretical prediction, we simulated a simplified version of our set up. Moreover, we used this toy model to study the conservation of radial and angular intensity profile through changing parameters limited by our set up. In general, we found that FWM preserves most information consisted in OAM, but has a rather loose control over the information stored in radial profile.
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2020-05-01
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Undergraduate Honors Theses
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RevisedKangning_thesis_FWM_OAM.pdf
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Novikova, Irina
Griffioen, Keith
Lunden, Anya
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Physics
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https://scholarworks.wm.edu/handle/internal/10874
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