Two-photon absorption and quantum light spectroscopy have emerged as transformative tools in modern optical research. At the heart of these techniques is the simultaneous absorption of two photons to ...
Allura Red, a red powdered azo dye, is commonly used in the cosmetic, food, textile, paper, and drug industries. Allura Red goes by several names, the most common being Red 40 or E129. Azo dyes are ...
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