We present a distinct design for a random laser based on a composite material consisting of an elastomeric liquid crystal with embedded TiO2 nanoparticles. Random lasing action can be controlled by an external, non-contact light stimulus; this induces a rearrangement of the elastomeric liquid crystals which moves the laser body in and out of the focal plane of a pump laser, pushing its emission above or below the lasing threshold.
Remote control of liquid crystal elastomer random laser using external stimuli / Tiwari, Anjani Kumar; Pattelli, Lorenzo; Torre, Renato; Wiersma, Diederik S.. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - ELETTRONICO. - 113:(2018), pp. 0-0. [10.1063/1.5038663]
Remote control of liquid crystal elastomer random laser using external stimuli
Tiwari, Anjani Kumar
;Pattelli, Lorenzo;Torre, Renato;Wiersma, Diederik S.
2018
Abstract
We present a distinct design for a random laser based on a composite material consisting of an elastomeric liquid crystal with embedded TiO2 nanoparticles. Random lasing action can be controlled by an external, non-contact light stimulus; this induces a rearrangement of the elastomeric liquid crystals which moves the laser body in and out of the focal plane of a pump laser, pushing its emission above or below the lasing threshold.
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