Robust Mouse Tissue imaging by Plasmonic random laser

Authors

• Muna Lateef ^{1, 2}
• Wajeha Abd Aldaim ¹
• Saddam Haddawi ^{1, 2}
• Seyedeh Mehri Hamidi * ³

1. Department of Laser Physics, College of Science for Woman, University of Babylon, Babylon, Iraq
2. Magneto-plasmonic Lab, Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran
3. Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran

Abstract

Given the major applications of optical random laser in the next generation devices, tissue imaging is proposed in this article by the aid of plasmonic random laser media. For this purpose, we use Rhodamine 6G as the main gain medium and fill it by Gold nanoparticles, Graphene and the mixture of them as random laser generator under the Nd: YAG’s second harmonic and use them in the imaging of mouse tissue. For this purpose, Nd: YAG laser with the first harmonic select to produce nanoparticles for 4 minutes’ exposure times and the second harmonic of the laser practice as the pump light to collect the random lasing. In the 45-degree arm, the mouse tissue puts as the object and the transmitted random lasing after the tissue collect by spectrometer. Our results show good random laser emission at the maximum of 3.69mJ pumping power and thus resolution in the imaging recording from the tissues. This low cost laser medium can suggest to next generation of imaging systems based on the plasmonic random lasers.

Keywords

• Nanoparticles
• Laser ablation in liquid
• Plasmonic random laser
• Mouse tissue