Browsing: Fluorescence

Fluorescence is the phenomenon where certain substances absorb light at one wavelength and re-emit it at a longer wavelength, typically visible as glowing light. This process occurs when molecules are excited by higher-energy light, such as ultraviolet (UV) light, and then release that energy in the form of visible light as they return to their ground state. Fluorescence is widely observed in nature, such as in some minerals, jellyfish, and plants, and has numerous scientific applications. It plays a key role in fields like biology and chemistry, particularly in techniques such as fluorescence microscopy, where it is used to study cells, tissues, and molecular interactions.