research
A 46-Nanometer Crystal Switched the Light's Twist
Crystal-engineered 3R-MoS2 switched second-harmonic vortex beams between opposite orbital-angular-momentum states in one ultrathin device.
Summary
Crystal-engineered 3R-MoS2 switched second-harmonic vortex beams between opposite orbital-angular-momentum states in one ultrathin device.
Spatially controlling the local orientation of a 46-nanometer rhombohedrally stacked molybdenum-disulfide crystal imprinted a nonlinear geometric phase on generated second-harmonic light. The monolithic structure switched between Hermite-Gauss-like and Laguerre-Gaussian vortex beams with opposite topological charges at sub-optical-cycle timing. The experiment advances nanoscale control of structured light for integrated photonics; it is not yet a complete communications or quantum-processing product.
Why it matters
Crystal-engineered 3R-MoS2 switched second-harmonic vortex beams between opposite orbital-angular-momentum states in one ultrathin device.
Limits and context
- The experiment advances nanoscale control of structured light for integrated photonics; it is not yet a complete communications or quantum-processing product.
Key claims
Crystal-engineered 3R-MoS2 switched second-harmonic vortex beams between opposite orbital-angular-momentum states in one ultrathin device.
Qualification: The experiment advances nanoscale control of structured light for integrated photonics; it is not yet a complete communications or quantum-processing product.
Evidence: source-2026-08-16-016
Sources
- arXiv preprint 2608.13548arXiv · primary research
Corrections
No corrections have been recorded for this story.