These lasers are now finding applications in diverse fields ... However, lasers are usually monochromatic, and thus if more than one wavelength is required extra lasers at specific wavelengths ...

The finding was reported in a research paper published ... O. Obasi et al, Multi-Wavelength characterization of VVVX open clusters, arXiv (2025). DOI: 10.48550/arxiv.2502.15114 ...