Extended Data Fig. 3: Laser-tweezer-guided fusion of chains and clusters of heliknotons.
From: Fusion and fission of particle-like chiral nematic vortex knots
a, Various fused heliknoton assembly guided by laser tweezers. b, c, In-situ optical manipulation of heliknoton chains fusing with heliknoton dimers at different controlled contact sites. The corresponding real-time dynamics is shown in SI Video 9. Black arrows show crossed polarizer orientations. In (a–c), sample thickness d = 16 μm, pitch p = 6.9 μm, and voltage U = 1.7 V.
