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Mechanically flexible organic semiconductor laser array

Guilhabert, B. and Laurand, N. and Herrnsdorf, J. and Chen, Y. and Kanibolotsky, A. L. and Orofino, C. and Skabara, P. J. and Dawson, M. D. (2012) Mechanically flexible organic semiconductor laser array. IEEE Photonics Journal, 4 (3). pp. 684-690. ISSN 1943-0655

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Abstract

We report the fabrication and characterization of a mechanically flexible 4 x 4 array of organic semiconductor lasers using blue-emitting tris(trifluorene) truxene oligomers as the gain medium. The device was fabricated entirely by soft lithography from the reproduction of a 1-D silica master grating. The grating array pattern was created directly on the master by a polymeric mask. Each element, or pixel, of the resulting laser array is made of a polymer mesa with embedded surface grating, and all the array elements are on the same mechanically flexible platform. Laser oscillation thresholds of individual photopumped laser pixels are as low as 75 nJ (70 mu J/cm(2) or 14 kW/cm(2)). The emission wavelength uniformity of the array is within +/- 3 nm with individual laser pixels emitting from 432 to 438 nm. On mechanical flexing of the array, a 10-nm tuning of the emission wavelength is achieved and is attributed to a change in the grating periodicity.

Item type: Article
ID code: 39960
Keywords: photonics, laser array , organic semiconductor laser array , truxene oligomers, Chemistry, Optics. Light, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
Subjects: Science > Chemistry
Science > Physics > Optics. Light
Department: Faculty of Science > Institute of Photonics
Technology and Innovation Centre > Photonics
Faculty of Science > Physics
Faculty of Engineering > Chemical and Process Engineering
Faculty of Science > Pure and Applied Chemistry
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 07 Jun 2012 11:53
Last modified: 27 Mar 2014 10:09
URI: http://strathprints.strath.ac.uk/id/eprint/39960

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