| Literature DB >> 24977840 |
Rolf Szedlak, Clemens Schwarzer, Tobias Zederbauer, Hermann Detz, Aaron Maxwell Andrews, Werner Schrenk, Gottfried Strasser.
Abstract
We present methods for beam modifications of ring quantum cascade lasers emitting around λ = 9μm, which are based on novel distributed feedback grating designs. This includes the creation of a rotationally symmetric far field with a central intensity maximum using an off-center grating as well as the generation of partial radially polarized emission beams induced by a rotation of the grating slits.Year: 2014 PMID： 24977840 DOI： 10.1364/OE.22.015829
Source DB: PubMed Journal: Opt Express ISSN： 1094-4087 Impact factor: 3.894