Title :
Resonance-driven random lasers
Author :
Sapienza, R. ; García, P.D. ; Gottardo, S. ; Blanco, A. ; Wiersma, D.S. ; Lòpez, C.
Abstract :
A random laser is a system formed by a random assembly of elastic scatters dispersed into an optical gain medium. We consider the case where the scattering is resonant. Our system, a photonic glass, can sustain scattering resonances over the gain frequency window, since it is formed by equal shape and equal size particles (monodisperse spheres) of relatively high refractive index contrast that are randomly assembled. The unique resonant scattering of this material allows controlling the laser emission via the diameter of the particles and their refractive index. Our system is therefore a random laser with a-priori designed lasing peak within the gain curve.
Keywords :
laser accessories; laser beams; optical glass; optical variables control; optical windows; random media; refractive index; solid lasers; elastic scatter random assembly dispersion; gain frequency window; high-refractive index; laser emission control; material unique resonant scattering; optical gain medium; photonic glass; priori designed lasing peak; resonance-driven random laser; Assembly systems; Frequency; Glass; Optical refraction; Optical scattering; Optical variables control; Particle scattering; Refractive index; Resonance; Windows;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5191950
