Plasmonic effect on performance of random lasers

Wan Zakiah Wan Ismail, Juliza Jamaludin, Irneza Ismail, Mus'ab Sahrim, Sharma Balakrishnan, Judith Dawes

Research output: Contribution to journalArticleResearchpeer-review

Abstract

We investigated the performance of random dye lasers based on metal-fluorophore distance to study the effect of plasmonics through localized surface plasmons. The silver nanoparticles were coated with various silica thicknesses and mixed with Rhodamine 6G in methanol solution to provide gain to the system. The samples were pumped by a Q-Switched Nd:YAG green laser with nanosecond-pulsewidth and the emission light was collected by a spectrometer. The overlapping of extinction spectra of silver nanoparticles/silver-coated silica nanoparticles with the absorption and/or fluorescence of Rhodamine 6G indicates the localized surface plasmon effects. Increasing the metal-fluorophore distance decreases the localized surface plasmon effects result in increase of lasing threshold and decrease of emission peak intensity.

LanguageEnglish
Pages1689-1693
Number of pages5
JournalAdvanced Science Letters
Volume24
Issue number3
DOIs
Publication statusPublished - Mar 2018

Keywords

  • Random Lasers
  • Plasmonics
  • Technique of Lasers and Photonics

Cite this

Ismail, W. Z. W., Jamaludin, J., Ismail, I., Sahrim, M., Balakrishnan, S., & Dawes, J. (2018). Plasmonic effect on performance of random lasers. Advanced Science Letters, 24(3), 1689-1693. https://doi.org/10.1166/asl.2018.11138
Ismail, Wan Zakiah Wan ; Jamaludin, Juliza ; Ismail, Irneza ; Sahrim, Mus'ab ; Balakrishnan, Sharma ; Dawes, Judith. / Plasmonic effect on performance of random lasers. In: Advanced Science Letters. 2018 ; Vol. 24, No. 3. pp. 1689-1693.
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Ismail, WZW, Jamaludin, J, Ismail, I, Sahrim, M, Balakrishnan, S & Dawes, J 2018, 'Plasmonic effect on performance of random lasers', Advanced Science Letters, vol. 24, no. 3, pp. 1689-1693. https://doi.org/10.1166/asl.2018.11138

Plasmonic effect on performance of random lasers. / Ismail, Wan Zakiah Wan; Jamaludin, Juliza; Ismail, Irneza; Sahrim, Mus'ab; Balakrishnan, Sharma; Dawes, Judith.

In: Advanced Science Letters, Vol. 24, No. 3, 03.2018, p. 1689-1693.

Research output: Contribution to journalArticleResearchpeer-review

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T1 - Plasmonic effect on performance of random lasers

AU - Ismail, Wan Zakiah Wan

AU - Jamaludin, Juliza

AU - Ismail, Irneza

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AU - Balakrishnan, Sharma

AU - Dawes, Judith

PY - 2018/3

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N2 - We investigated the performance of random dye lasers based on metal-fluorophore distance to study the effect of plasmonics through localized surface plasmons. The silver nanoparticles were coated with various silica thicknesses and mixed with Rhodamine 6G in methanol solution to provide gain to the system. The samples were pumped by a Q-Switched Nd:YAG green laser with nanosecond-pulsewidth and the emission light was collected by a spectrometer. The overlapping of extinction spectra of silver nanoparticles/silver-coated silica nanoparticles with the absorption and/or fluorescence of Rhodamine 6G indicates the localized surface plasmon effects. Increasing the metal-fluorophore distance decreases the localized surface plasmon effects result in increase of lasing threshold and decrease of emission peak intensity.

AB - We investigated the performance of random dye lasers based on metal-fluorophore distance to study the effect of plasmonics through localized surface plasmons. The silver nanoparticles were coated with various silica thicknesses and mixed with Rhodamine 6G in methanol solution to provide gain to the system. The samples were pumped by a Q-Switched Nd:YAG green laser with nanosecond-pulsewidth and the emission light was collected by a spectrometer. The overlapping of extinction spectra of silver nanoparticles/silver-coated silica nanoparticles with the absorption and/or fluorescence of Rhodamine 6G indicates the localized surface plasmon effects. Increasing the metal-fluorophore distance decreases the localized surface plasmon effects result in increase of lasing threshold and decrease of emission peak intensity.

KW - Random Lasers

KW - Plasmonics

KW - Technique of Lasers and Photonics

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Ismail WZW, Jamaludin J, Ismail I, Sahrim M, Balakrishnan S, Dawes J. Plasmonic effect on performance of random lasers. Advanced Science Letters. 2018 Mar;24(3):1689-1693. https://doi.org/10.1166/asl.2018.11138