P. P. Sorokin and F. P. Schäfer (along with their research groups) independently discovered laser dye in 1966.
Dye lasers represent a significant advancement in laser technology. Instead of using a solid-state crystal or gas as the lasing medium, they utilize organic dyes in liquid solution. This allows for a wider range of tunable wavelengths, making dye lasers particularly useful in scientific research, spectroscopy, and medical applications.
Here's a more detailed look:
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P. P. Sorokin: Working at IBM's Thomas J. Watson Research Center, Sorokin's team demonstrated lasing action using organic dyes pumped by a ruby laser.
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F. P. Schäfer: Simultaneously, Schäfer and his colleagues at the Max Planck Institute in Germany achieved similar results, also using organic dyes and laser pumping.
The independent discoveries by these two groups highlight the concurrent advancements in laser technology during the mid-1960s. Their work paved the way for the development of tunable lasers capable of emitting light across a broader spectrum than previously possible. This capability has greatly expanded the applications of lasers in various fields.
In summary, while the specific contributions of individual members within Sorokin's and Schäfer's groups might be debated, the credited discoverers of laser dye are P. P. Sorokin and F. P. Schäfer, both in 1966.