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Title

Tunable topological charge vortex microlaser

AuthorsZhang, Zhifeng; Qiao, Xingdu; Midya, Bikashkali; Liu, Kevin; Sun, Jingbo; Wu, Tianwei; Liu, Wenjing; Agarwal, Ritesh; Jornet, Josep Miquel; Longhi, Stefano; Litchinitser, Natalia M.; Feng, Liang
Issue Date15-May-2020
PublisherAmerican Association for the Advancement of Science
CitationScience 368(6492): 760-763 (2020)
AbstractThe orbital angular momentum (OAM) intrinsically carried by vortex light beams holds a promise for multidimensional high-capacity data multiplexing, meeting the ever-increasing demands for information. Development of a dynamically tunable OAM light source is a critical step in the realization of OAM modulation and multiplexing. By harnessing the properties of total momentum conservation, spin-orbit interaction, and optical non-Hermitian symmetry breaking, we demonstrate an OAM-tunable vortex microlaser, providing chiral light states of variable topological charges at a single telecommunication wavelength. The scheme of the non–Hermitian-controlled chiral light emission at room temperature can be further scaled up for simultaneous multivortex emissions in a flexible manner. Our work provides a route for the development of the next generation of multidimensional OAM-spin-wavelength division multiplexing technology.
Publisher version (URL)https://doi.org/10.1126/science.aba8996
URIhttp://hdl.handle.net/10261/218493
DOI10.1126/science.aba8996
ISSN0036-8075
E-ISSN1095-9203
Appears in Collections:(IFISC) Artículos
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