Vertically emitted dual wavelength random laser based on light emitting polymers and silver nanowires double cavity structure

Haddawi, S. F.; Kodeary, A. K.; Shnan, Nizar Salim; Roostaei, N.; Hamidi, Seyedeh Mehri; Humud, Hammad R.

doi:10.1016/j.ijleo.2020.165256

Cited by 5 publications

(1 citation statement)

References 21 publications

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“…The emission spectrum can be enhanced in the plasmon-assisted random laser by coupling the light-emitting polymer and the localized LSPR of the gold layer. Under the condition of enough overlap between the emission spectra of lightemitting polymers and the LSPR spectrum of the gold layer, the gold layer could usually absorb the incident photons and transfer them to the obtained medium (light-emitting polymer), leading to low threshold random laser action [15]. In our previous work, the Au NPs had a larger scattering cross-section due to enhanced scattering in the green region due to LSPR [16].…”

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confidence: 93%

Coupled Modes Enhance Random Lasing in Plasmonic Thin Etalons

Haddawi

Roostaei

Hamidi

2022

Preprint

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In this work, we experimentally and theoretically proved a flexible fine random laser from a two-face etalon plasmonic structure based on PDMS. Accordingly, PDMS was fabricated using the nanoimprint lithography method and coated by a thin gold layer with a thickness of 35 nm using a PVD device and light-emitting polymer (F8PT) to enhance the scattering and efficiency of the random laser. Using a plasmonic gold grating as a substrate, the simulation results compared the upside and downside of the plasmonic etalon structure. Moreover, an enhancement was observed in light transmission, and it is common to predict high efficiency in random lasing properties. The experimental results showed a comparison between normal plasmonic etalon samples and symmetric and asymmetric etalon-based nanostructures with thicknesses of 200, 400 and 600 \(\mu m\) and reported that random lasing properties had better results for samples with thinner spaces based on coupled mode effects. Correspondingly, this was done by increasing the intensity and decreasing the lasing threshold from 22 𝜇J in normal etalon to 16\(\mu J\) in the thinnest etalon structure.

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confidence: 93%