Random laser action under picosecond laser pumping

Ejbarah, R. A.; Jassim, J. M.; Hamidi, Seyedeh Mehri

doi:10.1007/s11082-020-02543-x

Cited by 6 publications

(1 citation statement)

References 17 publications

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“…By representing the light amplification via stimulated emission with the feedback provided by disordered scattering, random lasers have remained an attractive topic for many researchers in the field of laser physics. These lasers have unique intrinsic properties such as simple structure and large angular emission without the need for external cavities (Ejbarah et al, 2020). Therefore, great efforts have been devoted to realizing random lasers in different materials with a wide wavelength range from ultraviolet to mid-infrared and the terahertz frequency (Knitter et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Dye-Doped Fe3O4 Nanoparticles for Magnetically Controlling Random Laser Parameters at Visible Wavelengths: Literature Review and Experiment

Al-Samak¹,

Jassim²

2022

Indonesian J. Sci. Technol

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The development of light-controlled electronic devices requires new possibilities of optical control via tuning of laser input parameters. Here, Fe3O4 superparamagnetic nanoparticles (SNPs) were doped with dye, and the controllability of parameters of a random laser, including the wavelength, threshold energy, and intensity under the absence and presence of an external magnetic field was studied. The prepared dye laser (Rh-640) showed strong magnetic controllability and switch ability under different pumping energies (1‒7 mJ), as well as good responsivity and durability at visible wavelengths. The applied magnetic field was utilized to modify the distribution of Fe3O4 SNPs with different concentrations and scattering behavior, altering the generation of coherent loops and laser action properties. Thus, it was possible to employ the magnetically controllable random laser in a variety of technological applications, including biology and optical communications

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Section: Introductionmentioning

confidence: 99%