Definitions
- Describing the emission of light by a substance when exposed to ultraviolet or visible light. - Referring to the property of certain materials to absorb light at one wavelength and emit it at another, longer wavelength. - Talking about the phenomenon of light emission that occurs only while the stimulating radiation is present.
- Referring to the emission of light from a substance without the need for heat or flame. - Describing the property of certain materials to emit light as a result of chemical reactions, electrical energy, or radiation. - Talking about the phenomenon of light emission that occurs without any external stimulation.
List of Similarities
- 1Both fluorescence and luminescence describe the emission of light.
- 2Both can occur in natural and synthetic materials.
- 3Both are used in various fields such as science, technology, and art.
- 4Both involve the absorption and emission of energy.
- 5Both can be used for detection and imaging purposes.
What is the difference?
- 1Source: Fluorescence requires external stimulation, while luminescence can occur spontaneously.
- 2Mechanism: Fluorescence involves the absorption of light at one wavelength and emission at a longer wavelength, while luminescence can result from various mechanisms such as chemical reactions, electrical energy, or radiation.
- 3Duration: Fluorescence is a temporary phenomenon that ceases once the stimulating radiation is removed, while luminescence can persist for a longer time.
- 4Color: Fluorescence emits light at a longer wavelength than the absorbed light, while luminescence can emit light at various wavelengths depending on the mechanism.
- 5Application: Fluorescence is commonly used in microscopy, imaging, and labeling, while luminescence is used in various fields such as lighting, displays, and sensing.
Remember this!
Fluorescence and luminescence both describe the emission of light from materials, but they differ in their source, mechanism, duration, color, and application. Fluorescence requires external stimulation and involves the absorption and emission of light at different wavelengths, while luminescence can occur spontaneously and result from various mechanisms. Fluorescence is commonly used in microscopy and imaging, while luminescence has applications in lighting, displays, and sensing.
