XXXVI Reunión Bienal de la Real Sociedad Española de Física

Last advances on thin film organic lasers.

17 jul. 2017 18:00

30m

Aula Matemáticas (Facultad Química (USC))

Oral parallel contribution Molecular Electronics Molecular Electronics

Descripción

In the last years extensive research has been devoted to the investigation of optically-pumped solution processable thin film organic lasers, due to their advantages of chemical versatility, wavelength tunability, mechanical flexibility and low cost. Particularly attractive for applications in the fields of optical communications, biosensing and chemical sensing are distributed feedback (DFB) lasers, consisting of nanostructured active organic waveguides. In this context, our research group has performed extensive work on DFBs with different types of organic active materials and laser resonators. In this presentation the last advances achieved by our research group in improving both, the active laser material and the laser resonator, and their application as optical sensors of various kinds, will be discussed. This includes first, results on high performing laser dyes of two families: perylenediimides, PDIs, and carbon-bridged oligo(p-phenylenevinylene)s, COPVs, dispersed in thermoplastic polymer films, emitting in a wide range of wavelengths within the visible spectrum. Secondly, progress on the development of different device geometries based on one dimensional second-order DFB resonators fabricated by holographic lithography and nanoimprint lithography. The capability of these lasers to be used as label-free refractive index sensors, sensors for the specific detection of biomolecules of clinical interest, etc., will also be described.