Nonlinear absorption and photoluminescence emission in nanocomposite films of Fuchsine Basic dye-polymer system

G. Sreekumar; P. G. Louie Frobel; S. Sreeja; S. R. Suresh; S. Mayadevi; C. I. Muneera; C. S. Suchand Sandeep; Reji Philip; Chandrachur Mukharjee

doi:10.1016/j.cplett.2011.02.048

Nonlinear absorption and photoluminescence emission in nanocomposite films of Fuchsine Basic dye-polymer system

G. Sreekumar
, P. G. Louie Frobel
, S. Sreeja
, S. R. Suresh
, S. Mayadevi
, C. I. Muneera
, C. S. Suchand Sandeep
, Reji Philip
, Chandrachur Mukharjee

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

Fuchsine Basic dye-polyvinyl alcohol composite films were fabricated and their structure, nonlinear absorption as well as linear absorption and photoluminescence properties were investigated. Switchover from saturable absorption to two-photon assisted excited state absorption with increase in intensity was observed in the open aperture Z-scan study (Nd:YAG, 532 nm, 7 ns). The effective two-photon absorption coefficient β was found to be several orders higher than that reported for rhodamine B. The dye-polymer films were characterized as nanocomposites with dye microdomains encapsulated between molecules of the amorphous polymer and having average surface roughness as low as ≈0.46 nm. The samples also exhibited intense photoluminescence emission when excited with 534 nm radiation.

Original language	English
Pages (from-to)	61-65
Number of pages	5
Journal	Chemical Physics Letters
Volume	506
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2011.02.048
Publication status	Published - 11-04-2011

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2011.02.048

Cite this

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title = "Nonlinear absorption and photoluminescence emission in nanocomposite films of Fuchsine Basic dye-polymer system",

abstract = "Fuchsine Basic dye-polyvinyl alcohol composite films were fabricated and their structure, nonlinear absorption as well as linear absorption and photoluminescence properties were investigated. Switchover from saturable absorption to two-photon assisted excited state absorption with increase in intensity was observed in the open aperture Z-scan study (Nd:YAG, 532 nm, 7 ns). The effective two-photon absorption coefficient β was found to be several orders higher than that reported for rhodamine B. The dye-polymer films were characterized as nanocomposites with dye microdomains encapsulated between molecules of the amorphous polymer and having average surface roughness as low as ≈0.46 nm. The samples also exhibited intense photoluminescence emission when excited with 534 nm radiation.",

author = "G. Sreekumar and \{Louie Frobel\}, \{P. G.\} and S. Sreeja and Suresh, \{S. R.\} and S. Mayadevi and Muneera, \{C. I.\} and \{Suchand Sandeep\}, \{C. S.\} and Reji Philip and Chandrachur Mukharjee",

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doi = "10.1016/j.cplett.2011.02.048",

language = "English",

volume = "506",

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journal = "Chemical Physics Letters",

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TY - JOUR

T1 - Nonlinear absorption and photoluminescence emission in nanocomposite films of Fuchsine Basic dye-polymer system

AU - Sreekumar, G.

AU - Louie Frobel, P. G.

AU - Sreeja, S.

AU - Suresh, S. R.

AU - Mayadevi, S.

AU - Muneera, C. I.

AU - Suchand Sandeep, C. S.

AU - Philip, Reji

AU - Mukharjee, Chandrachur

PY - 2011/4/11

Y1 - 2011/4/11

N2 - Fuchsine Basic dye-polyvinyl alcohol composite films were fabricated and their structure, nonlinear absorption as well as linear absorption and photoluminescence properties were investigated. Switchover from saturable absorption to two-photon assisted excited state absorption with increase in intensity was observed in the open aperture Z-scan study (Nd:YAG, 532 nm, 7 ns). The effective two-photon absorption coefficient β was found to be several orders higher than that reported for rhodamine B. The dye-polymer films were characterized as nanocomposites with dye microdomains encapsulated between molecules of the amorphous polymer and having average surface roughness as low as ≈0.46 nm. The samples also exhibited intense photoluminescence emission when excited with 534 nm radiation.

AB - Fuchsine Basic dye-polyvinyl alcohol composite films were fabricated and their structure, nonlinear absorption as well as linear absorption and photoluminescence properties were investigated. Switchover from saturable absorption to two-photon assisted excited state absorption with increase in intensity was observed in the open aperture Z-scan study (Nd:YAG, 532 nm, 7 ns). The effective two-photon absorption coefficient β was found to be several orders higher than that reported for rhodamine B. The dye-polymer films were characterized as nanocomposites with dye microdomains encapsulated between molecules of the amorphous polymer and having average surface roughness as low as ≈0.46 nm. The samples also exhibited intense photoluminescence emission when excited with 534 nm radiation.

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DO - 10.1016/j.cplett.2011.02.048

M3 - Article

AN - SCOPUS:79953213271

SN - 0009-2614

VL - 506

SP - 61

EP - 65

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Nonlinear absorption and photoluminescence emission in nanocomposite films of Fuchsine Basic dye-polymer system

Abstract

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