http://www.cnr.it/ontology/cnr/individuo/prodotto/ID289536
Transition from nonresonant to resonant random lasers by the geometrical confinement of disorder (Articolo in rivista)
- Type
- Label
- Transition from nonresonant to resonant random lasers by the geometrical confinement of disorder (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1364/OL.38.005043 (literal)
- Alternative label
Ghofraniha, N.; Viola, I.; Zacheo, A.; Arima, V.; Gigli, G.; Conti, C. (2013)
Transition from nonresonant to resonant random lasers by the geometrical confinement of disorder
in Optics letters
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Ghofraniha, N.; Viola, I.; Zacheo, A.; Arima, V.; Gigli, G.; Conti, C. (literal)
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- Note
- ISI Web of Science (WOS) (literal)
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- Consiglio Nazionale delle Ricerche (CNR); Consiglio Nazionale delle Ricerche (CNR); Sapienza University Rome; University of Salento; Istituto Italiano di Tecnologia - IIT (literal)
- Titolo
- Transition from nonresonant to resonant random lasers by the geometrical confinement of disorder (literal)
- Abstract
- We report on a transition in random lasers that is induced by the geometrical confinement of the emitting material. Different dye doped paper devices with controlled geometry are fabricated by soft lithography and show two distinguished behaviors in the stimulated emission: in the absence of boundary constraints, the energy threshold decreases for larger laser volumes showing the typical trend of diffusive nonresonant random lasers, while when the same material is lithographed into channels, the walls act as cavity and the resonant behavior typical of standard lasers is observed. The experimental results are consistent with the general theories of random and standard lasers and a clear phase diagram of the transition is reported. (C) 2013 Optical Society of America (literal)
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