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Title

Blue surface-emitting distributed feedback lasers based on TPD-doped films

AuthorsCalzado, Eva M.; Villalvilla, Jose M.; Boj, Pedro G.; Quintana, Jose A.; Postigo, Pablo Aitor ; Díaz-García, María A.
KeywordsLaser optics
Organic materials
Issue Date15-Jan-2010
PublisherOptical Society of America
CitationApplied Optics, 49, 3 (2010)
AbstractSingle-mode second-order distributed feedback (DFB) lasers with low threshold, based on polystyrene films doped with 30 wt:% of the hole-transporting organic molecule N,N0-bis (3-methylphenyl)-N,N0- diphenylbenzidine (TPD) are reported. The laser emission wavelength was tuned between 415 and 427nm by film thickness variation. The effectiveness of the DFB grating in improving the laser performance is evidenced by the observation of linewidths and laser thresholds lower than those of the amplified spontaneous emission characteristics shown by films without gratings. The use of holographic lithography as the technique for grating recording has allowed us to prepare large samples in a fast, versatile, and simple manner.
Publisher version (URL)http://dx.doi.org/10.1364/AO.49.000463
URIhttp://hdl.handle.net/10261/32180
DOI10.1364/AO.49.000463
ISSN0003-6935
Appears in Collections:(IMN-CNM) Artículos
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