Judd–Ofelt analysis of Nd3+ ions in poly(styrene sulfonate) films

Silva, Marcelo C.; Cristovan, Fernando H.; Nascimento, Cesar; Bell, M.J.V.; Cruz, Welington O.; Marletta, Alexandre

doi:10.1016/j.jnoncrysol.2006.08.023

Cited by 14 publications

(7 citation statements)

References 25 publications

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“…The values of σ E and the Δλ eff are 6.13 × 10 −21 cm 2 and 41 nm, respectively. The stimulated emission parameters obtained for the PVA matrix compare well with certain glass matrices like silicate, borate,23 polymer optical fiber, and polystyrene sulfonate films 28…”

Section: Resultssupporting

confidence: 53%

UV–VIS absorption and NIR‐stimulated emission of Nd³⁺: PVA films

Adiyodi

Jyothy

Unnikrishnan

2009

J of Applied Polymer Sci

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Neodymium-doped polyvinyl alcohol films were prepared and the optical properties of the films were investigated. By applying Judd-Ofelt theory, the X parameters were obtained from the absorption spectrum. Various radiative parameters like transition probability for each level (A J ), total transition probability (A T ), branching ratio (b R ), radiative lifetime (s rad ), and absorption cross-section (r A ) were calculated. The theoretically obtained branching ratio and integrated absorption cross-section are found to be greater for the transition 4 F 3/2 ! 4 I 11/2 . From the emission spectrum peaked at 1064-nm stimulated emission cross-section (r E ), the line width (Dk eff ) is calculated to be 6.21 Â 10 À21 cm 2 and 41 nm, respectively. Further the variation of the optical gain with the length of the film was studied and the slope efficiency (g ¼ 8.5%) was determined from laser measurements. These results clearly support the potentiality of the Nd 3þ : polyvinyl alcohol films in realizing optical amplification and stimulated emission.

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Section: Resultssupporting

confidence: 53%

UV–VIS absorption and NIR‐stimulated emission of Nd³⁺: PVA films

Adiyodi

Jyothy

Unnikrishnan

2009

J of Applied Polymer Sci

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“…Comparing with other polymeric and inorganic systems in Ref. [10], the Nd11 displays a larger value of X, that is, the transition 4 F 3/2 ? 4 I 11/2 is more probable.…”

Section: Discussionmentioning

confidence: 80%

“…The calculation procedure was performed according to Ref. [10]. The spectroscopic parameters: radiative rate (A), branching ratio (b), emission cross section (r), and excited state lifetime (s), were determined.…”

Section: Discussionmentioning

confidence: 99%

“…However, one limitation normally encountered in the preparation of such materials, lies in the difficulty found in dissolving the rare-earth ions in commercial polymer matrixes. Hence, various synthesis routes have been proposed [2,[8][9][10], to contour this drawback. Recently we have been working on the development of a successful, simplified synthesis route, for the obtainment of neodymium (Nd 3+ ) doped poly(styrene sulfonate) (PSS) films [11].…”

Section: Introductionmentioning

confidence: 99%

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Structural and spectroscopic characterization of poly(styrene sulfonate) films doped with neodymium ions

Silva

Camargo

Nunes

et al. 2008

Journal of Non-Crystalline Solids

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“…Nd 3+ is one of the most widely studied luminescent ions, and Nd 3+ -doped crystalline, glass and ceramics have been applied in many fields. Nd 3+ has been extensively used as laser active ion in several hosts due to high quantum efficiency of its some emission channels either by normal fluorescence in NIR region or by upconversion/frequency doubling in green-red wavelength [21][22][23]. Most of the Nd 3+ lasers operate in NIR region on two lasing transitions 4 F 3/2 → 4 I 11/2,13/2 at around 1060 nm and 1349 nm wavelengths respectively based on four level systems.…”

Section: Introductionmentioning

confidence: 99%