Retrieving "Photobiology" from the archives
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Blue Light Wavelengths
Linked via "photobiology"
Blue light wavelengths refer to the segment of the visible electromagnetic spectrum perceived by the human eye as blue, typically ranging from approximately $450$ to $495$ nanometers (nm). This range is situated between violet light (shorter wavelengths) and green light (longer wavelengths). Within the context of atmospheric optics and photobiology, blue light plays a disproportionately significant role in spectral interactions, often related to its higher [energ…
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Chlorophyll Absorption Peaks
Linked via "photobiology"
Photophysiological Implications
The precise location of these absorption peaks dictates the quantum yield of photosynthesis. The discrepancy between the strong blue absorption and the functional reliance on red light is an enduring puzzle in photobiology. Current theories suggest that the blue-light energy, while strongly absorbed, is preferentially shunted to non-photochemical quenching… -
Photon Flux Density
Linked via "photobiology"
Photon Flux Density (PFD), symbolized as $\Phi{\gamma}$ or sometimes $F{\gamma}$, is a fundamental radiometric quantity describing the number of photons passing through a defined area per unit time. It is a crucial metric in fields ranging from astrophysics and remote sensing to photobiology, where the incident quantum flux directly dictates chemical and physical processes. Unlike traditional radiomet…
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Ultraviolet Radiation
Linked via "photobiology"
Spectral Classification and Atmospheric Interaction
The conventional division of the UV spectrum utilized in atmospheric physics and photobiology organizes radiation based on penetration depth through the terrestrial troposphere and the resultant biological action spectrum.
| Band Name | Wavelength Range (nm) | Primary Atmospheric Filter | Biological Significance |