We investigated the emission properties of a distributed-feedback resonator based on an organic semiconductor patterned by a novel printing technology. We observed the peak splitting of the photonic bandstructure of the periodic grating and extracted the effective refractive index of the outcoupled guided modes. The laser works at the second diffraction order, exhibiting narrow single-mode emission at 637 nm, with a threshold as low as 37 j.LJjcm2. The results suggest that direct printing is a promising fabrication technique for optically confined integrated optoelectronics.
Emission properties of printed organic semiconductor lasers
PISIGNANO, Dario;PERSANO, Luana;MELE, ELISA;VISCONTI, Paolo;CINGOLANI, Roberto;GIGLI, Giuseppe;
2005-01-01
Abstract
We investigated the emission properties of a distributed-feedback resonator based on an organic semiconductor patterned by a novel printing technology. We observed the peak splitting of the photonic bandstructure of the periodic grating and extracted the effective refractive index of the outcoupled guided modes. The laser works at the second diffraction order, exhibiting narrow single-mode emission at 637 nm, with a threshold as low as 37 j.LJjcm2. The results suggest that direct printing is a promising fabrication technique for optically confined integrated optoelectronics.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
