Open AccessFlexible blue-emitting encapsulated organic semiconductor DFB laser
Author(s) -
Johannes Herrnsdorf,
Benoit Guilhabert,
Y. Chen,
Alexander L. Kanibolotsky,
A. R. Mackintosh,
Richard A. Pethrick,
Peter J. Skabara,
Erdan Gu,
N. Laurand,
Martin D. Dawson
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.025535
Subject(s) - materials science , laser , optics , holography , optoelectronics , semiconductor laser theory , lithography , semiconductor , soft lithography , amplified spontaneous emission , distributed feedback laser , diffraction grating , grating , fabrication , wavelength , physics , medicine , alternative medicine , pathology
Mechanically flexible distributed feedback (DFB) lasers are fabricated by a low-cost approach using soft-lithography from a holographic master grating. The gain material is a star-shaped oligofluorene providing laser emission from 425 to 442 nm with a soft pump threshold at 14.4 μJ/cm (2.7 kW/cm). Encapsulation of the devices enables stable operation in ambient atmosphere at a 1/e degradation energy dosage of 53 J/cm.