Using an external magnetic field, we demonstrate in-plane angular steering of a green pumped random laser in dye-doped nematic liquid crystals, where a near-infrared reorientational spatial soliton provides a smooth output profile with emission in a well-defined direction. By varying the orientation of the applied magnetic field, the soliton-guided random laser beam can be steered over an angle as large as 14 degrees, corresponding to a transverse displacement of 0.49 mm at the output facet of a 2 mm-long sample.
Perumbilavil, S., Kauranen, M., Assanto, G. (2018). Magnetic steering of beam confined random laser in liquid crystals. APPLIED PHYSICS LETTERS, 113(12), 121107 [10.1063/1.5052272].
Magnetic steering of beam confined random laser in liquid crystals
G. Assanto
Conceptualization
2018-01-01
Abstract
Using an external magnetic field, we demonstrate in-plane angular steering of a green pumped random laser in dye-doped nematic liquid crystals, where a near-infrared reorientational spatial soliton provides a smooth output profile with emission in a well-defined direction. By varying the orientation of the applied magnetic field, the soliton-guided random laser beam can be steered over an angle as large as 14 degrees, corresponding to a transverse displacement of 0.49 mm at the output facet of a 2 mm-long sample.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
