Abstract
We propose a convenient approach for managing orbital angular momentum (OAM) of second-harmonic photons generated by a quadratic nonlinear interaction under noncolinear type-I phase matching condition. Since the OAMs of two fundamental photons can be flexibly controlled by using computer-generated holograms, we were able to realize arbitrary combination of both OAMs and experimentally confirm the OAM conservation selection rule ℓ 2ω=ℓω′+ℓω′′ in general cases. In particular, our approach could be used to generate the second-harmonic photon states with fractional and odd-order OAMs.
| Original language | English |
|---|---|
| Article number | 035801 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 88 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 3 Sept 2013 |
| Externally published | Yes |
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Li, S. M., Kong, L. J., Ren, Z. C., Li, Y., Tu, C., & Wang, H. T. (2013). Managing orbital angular momentum in second-harmonic generation. Physical Review A - Atomic, Molecular, and Optical Physics, 88(3), Article 035801. https://doi.org/10.1103/PhysRevA.88.035801