Magnetic steering of beam-confined random laser in liquid crystals

Sreekanth Perumbilavil; Martti Kauranen; Gaetano Assanto

doi:10.1063/1.5052272

Magnetic steering of beam-confined random laser in liquid crystals

Sreekanth Perumbilavil, Martti Kauranen, Gaetano Assanto

Research output: Contribution to journal › Article › Scientific › peer-review

15 Citations (Scopus)

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°, corresponding to a transverse displacement of 0.49 mm at the output facet of a 2 mm-long sample.

Original language	English
Article number	121107
Number of pages	4
Journal	Applied Physics Letters
Volume	113
Issue number	12
DOIs	https://doi.org/10.1063/1.5052272
Publication status	Published - 17 Sept 2018
Publication type	A1 Journal article-refereed

Publication forum classification

Publication forum level 2

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.5052272

Cite this

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title = "Magnetic steering of beam-confined random laser in liquid crystals",

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°, corresponding to a transverse displacement of 0.49 mm at the output facet of a 2 mm-long sample.",

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AU - Assanto, Gaetano

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Y1 - 2018/9/17

N2 - 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°, corresponding to a transverse displacement of 0.49 mm at the output facet of a 2 mm-long sample.

AB - 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°, corresponding to a transverse displacement of 0.49 mm at the output facet of a 2 mm-long sample.

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DO - 10.1063/1.5052272

M3 - Article

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IS - 12

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Magnetic steering of beam-confined random laser in liquid crystals

Abstract

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