Photon absorption is a process where a photon's energy is taken up by an atom or molecule, resulting in an electronic transition to a higher energy state. This fundamental interaction plays a critical role in phenomena such as photosynthesis, photovoltaic energy conversion, and the functioning of optical devices.

Photon Absorption

Photon absorption

photon's energy

atom or molecule

An electronic transition refers to the movement of an electron between energy levels within an atom or molecule, often resulting in the absorption or emission of a photon. This process is fundamental in spectroscopy and is crucial for understanding the interaction of light with matter, influencing phenomena such as color and fluorescence.

electronic transition

higher energy state

fundamental interaction

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy, stored as glucose, using carbon dioxide and water. This process not only sustains plant life but also produces oxygen, which is essential for most life forms on Earth.

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