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A Surface‐Emitting Circular Grating Polymer Laser
Author(s) -
Bauer C.,
Giessen H.,
Schnabel B.,
Kley E.B.,
Schmitt C.,
Scherf U.,
Mahrt R. F.
Publication year - 2001
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200108)13:15<1161::aid-adma1161>3.0.co;2-9
Subject(s) - materials science , grating , perpendicular , laser , substrate (aquarium) , optics , optoelectronics , polymer , composite material , oceanography , geometry , mathematics , physics , geology
An optically pumped circular grating polymer laser (see Figure) is obtained using a nanostructured quartz substrate covered with a thin film of methyl‐substituted ladder‐type poly( p ‐phenylene) (MeLPPP). The second‐order grating serves at the same time as a 2D feedback mechanism and as an output coupler. Laser emission perpendicular to the substrate with a clear threshold behavior, an extremely narrow spectral width, and a highly directional beam is achieved.