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A Thin‐Film Flexible Defect‐Mode Laser
Author(s) -
Ali Taimoor,
Lin JiaDe,
Snow Benjamin,
Wang Xiuze,
Elston Steve J.,
Morris Stephen M.
Publication year - 2020
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201901891
Subject(s) - materials science , laser , conformable matrix , optoelectronics , thin film , optics , polarization (electrochemistry) , dye laser , curvature , nanotechnology , composite material , chemistry , physics , geometry , mathematics
Laser emission from a flexible defect‐mode structure consisting of two photopolymerized liquid crystal thin films separated by a dye‐doped polymethylmethacrylate defect layer is demonstrated. A simple and cost‐effective film transfer technique is used to fabricate the flexible laser and the corresponding laser emission characteristics, which shows single‐mode laser emission at λ = 582 nm, with an excitation threshold of E th = 12.3 ± 0.5 µJ cm −2 per pulse and a slope efficiency of η s = 6.0 ± 0.3%, are presented. The polarization state of the laser emission are also presented and are compared with the findings reported in the literature. Finally, laser‐beam steering is demonstrated up to 42° by subjecting the device to a mechanically induced deformation that creates a radius of curvature of 5 mm, which is of potential interest for conformable and wearable technology platforms.