Spectral modification of mode structures in silver nanoparticle doped Rhodamine 6G
Arindam Sarkar, C.L. Linslal, V. P. N. Nampoori
TL;DR
This study demonstrates that silver nanoparticle doping in Rhodamine 6G solutions enables spectral tuning and modulation of narrow lasing modes while maintaining high quality factors, advancing nanophotonic laser control.
Contribution
It introduces a method to modulate and tune narrow lasing modes in Rhodamine 6G with silver nanoparticles without compromising high Q values.
Findings
Lasing modes with FSR ~0.09 nm achieved.
Silver nanoparticles enable spectral modulation.
High Q value > 6.4×1000 maintained.
Abstract
We show in our work that very narrow (FSR~0.09 nm) lasing modes can be formed from rhodamine 6G solution confined within quartz (SiO2) cuvette with suitable pumping scheme by Q switched Nd:YAG laser. With introduction of silver nanoparticles of different concentrations in rhodamine 6G we show that such lasing modes can be modulated as well as tuned in intensity, band spacing and emission wavelength. We also show that this system maintains a very high Q value > 6.4*1000 irrespective to change in other parameters.
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