PHOTOLUMINESCENT Meaning and
Definition
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Photoluminescent refers to the property or ability of a substance to emit light energy when it is exposed to radiation, typically in the form of ultraviolet light. This optical phenomenon occurs as a result of the absorption of the incoming radiation by the material, followed by the subsequent reemission of light at a longer wavelength.
Photoluminescent materials can be categorized into two types: fluorescent and phosphorescent. Fluorescent materials absorb the radiation and quickly reemit the energy, resulting in an immediate glow that lasts as long as the radiation is present. In contrast, phosphorescent materials have the ability to store the absorbed energy for a certain period of time and gradually emit light even after the radiation source is no longer present.
This property of photoluminescence has various applications, especially in safety-related contexts. For instance, photoluminescent pigments are commonly used to create glow-in-the-dark signs, exit signs, and safety markings. In emergency situations or power outages, these materials can provide essential illumination by absorbing and storing light energy from ambient sources and emitting a visible glow. Additionally, photoluminescent materials are employed in the development of fluorescent lamps, optoelectronic devices, and in scientific research, where they serve as indicators or tracers.
In summary, photoluminescent refers to the emission of light by a material upon exposure to radiation, with applications in safety, lighting, and scientific fields.
Common Misspellings for PHOTOLUMINESCENT
- ohotoluminescent
- lhotoluminescent
- -hotoluminescent
- 0hotoluminescent
- pgotoluminescent
- pbotoluminescent
- pnotoluminescent
- pjotoluminescent
- puotoluminescent
- pyotoluminescent
- phitoluminescent
- phktoluminescent
- phltoluminescent
- phptoluminescent
- ph0toluminescent
- ph9toluminescent
- phoroluminescent
- phofoluminescent
- phogoluminescent
- phoyoluminescent
Etymology of PHOTOLUMINESCENT
The word "photoluminescent" is derived from three Greek roots:
1. "Photo-" comes from the Greek word "photos", which means "light".
2. "Luminescent" comes from the Latin word "lūmen" (plural "lūminis"), which means "light" or "glow". This Latin word is ultimately derived from the Greek word "λύχνος" (lýkhnos), meaning "lamp" or "light".
3. The Greek prefix "-lumino" is derived from the Greek word "lýchnos" mentioned above, and is added to the root word to indicate the emission or production of light.
Therefore, "photoluminescent" combines the Greek roots for "light" (photo) and "glow" (luminescent) to describe a substance or material that absorbs photons and emits light.
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