Nonlinear Conversion of Orbital Angular Momentum States of Light

We investigate the second harmonic generation of light field carrying orbital angular momentum in bulk \(\chi^{(2)}\) material. We show that due to conservation of energy and momentum, the frequency doubled beam light has a modified spatial distribution and mode characteristics. Through rigorous pha...

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Bibliographic Details
Published in:arXiv.org 2021-05
Main Authors: Bassène, Pascal, Buldt, Finn, Rumman, Nazifa, Wang, Tianhong, Heitert, Phillip, N'Gom, Moussa
Format: Article
Language:English
Subjects:
Angular momentum
Conversion
Phase matching
Second harmonic generation
Spatial distribution
Online Access:Get full text
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Summary:We investigate the second harmonic generation of light field carrying orbital angular momentum in bulk \(\chi^{(2)}\) material. We show that due to conservation of energy and momentum, the frequency doubled beam light has a modified spatial distribution and mode characteristics. Through rigorous phase matching conditions, we demonstrate efficient mode and frequency conversion based on three wave nonlinear optical mixing.
ISSN:2331-8422