Cold & Hot transition of light

[peps]

Can someone briefly explain the definition or the difference between a cold and hot transition of light?

Hot transition involves a change in an atoms vibration and standing wave patterns from absorbtion of higher frequency, such as skin sunburn from long exposures to ultraviolet light or physical change in food from microwave.

What are some examples and the process of cold transitions?

 

[Mentz114]

When light is absorbed by a leaf or some other green life, the energy is used to make chemical bonds and not heat. Also when light is absorbed in the eye, it causes neural impulses.

 

[m2003]

A cold transition of light refers to a change in an atom's vibration and standing wave patterns from absorption of lower frequency light. This can occur in a variety of ways, such as when an object absorbs infrared light and heats up, or when a molecule absorbs visible light and undergoes a chemical reaction.

One example of a cold transition is the process of photosynthesis in plants. Chlorophyll molecules absorb light in the visible spectrum, causing a transition in their energy levels and allowing them to convert light energy into chemical energy.

Another example is the formation of ozone in the upper atmosphere. Ultraviolet light from the sun causes a cold transition in oxygen molecules, leading to the formation of ozone molecules that help protect us from harmful UV radiation.

Overall, the main difference between hot and cold transitions of light is the frequency of the light being absorbed and the resulting change in the atom's energy levels. Both types of transitions play important roles in various natural and technological processes.