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Applied Optics

Applied Optics


  • Vol. 43, Iss. 26 — Sep. 10, 2004
  • pp: 5074–5078

Amplified spontaneous emission and gain from optically pumped films of dye-doped polymers

Wu Lu, Bo Zhong, and Dongge Ma  »View Author Affiliations

Applied Optics, Vol. 43, Issue 26, pp. 5074-5078 (2004)

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The amplified spontaneous emission and gain characteristics of various fluorescent dyes, 2-(1,1-dimethylethyl)-6(2-(2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H-benzo[ij] quinolizin-9-1)ethenyl)-4H-pyran-4-ylidene) propanedinitrile (DCJTB) and 4-dicyanomethylene-2-methyl-6-(p-dimethyl-aminostyryl)-4H-pyran (DCM), doped in polystyrene (PS) matrices were studied and compared. It was found that DCJTB has a larger net gain, 40.72 cm-1, a lower loss, 2.49 cm-1, and a lower threshold, 0.16 (mJ/pulse)/cm2, than DCM, which has a net gain of 11.95 cm-1, a loss of 9.25 cm-1, and a threshold of 4(mJ/pulse)/cm2. The improvement of performance in DCJTB PS films is attributed to the larger free volume of DCJTB caused by the introduction of steric spacer groups into the DCJTB molecule.

© 2004 Optical Society of America

OCIS Codes
(140.3580) Lasers and laser optics : Lasers, solid-state
(160.5470) Materials : Polymers

Original Manuscript: March 23, 2004
Revised Manuscript: June 17, 2004
Published: September 10, 2004

Wu Lu, Bo Zhong, and Dongge Ma, "Amplified spontaneous emission and gain from optically pumped films of dye-doped polymers," Appl. Opt. 43, 5074-5078 (2004)

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