Electro-optic steering of random laser emission in liquid crystals

Gaetano Assanto, Sreekanth Perumbilavil, Armando Piccardi, Martti Kauranen

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)


Using an external low-frequency electric field applied to dye-doped nematic liquid crystals, we demonstrate that random lasing obtained by optical pumping can be steered in an angular direction by routing an all-optical waveguide able to collect the emitted light. By varying the applied voltage from 0 to 2 V, we reduce the walk-off and sweep the random laser guided beam over 7 degrees.

Original languageEnglish
Pages (from-to)103-105
Number of pages3
JournalPhotonics Letters of Poland
Issue number4
Publication statusPublished - 2018
Publication typeA1 Journal article-refereed

Publication forum classification

  • Publication forum level 0

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials


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