- #1
corvuscrypto
- 7
- 0
Hello all of you very bright physicists,
The local physics dept. is not answering us thus far and long story short we need a rough estimate of the power of a light source based on wavelength and a measured concentration of photons.
We need a method of converting the photon concentration per area per second (umol*m^-2*s-1) into power, ideally watts per area. We know the wavelength (or range of wavelengths) and the end goal is again to be able to estimate the power we are getting from a light source at a particular wavelength.
The measurements we took were with a photometer that read the concentration of photons for all wavelengths between 300-700 nm. However, we decided that for easier estimation we would use the middle of the range (500nm) and use that as the wavelength to calculate power.
If I counted right, I'm asking for an equation that is a function of concentration and wavelength :P.
Hope that is enough information for y'all to help me out. Even a base set of equations would be nice so I could at least attempt to derive something from them. Any help is greatly appreciated.
Love,
a lowly biologist
The local physics dept. is not answering us thus far and long story short we need a rough estimate of the power of a light source based on wavelength and a measured concentration of photons.
We need a method of converting the photon concentration per area per second (umol*m^-2*s-1) into power, ideally watts per area. We know the wavelength (or range of wavelengths) and the end goal is again to be able to estimate the power we are getting from a light source at a particular wavelength.
The measurements we took were with a photometer that read the concentration of photons for all wavelengths between 300-700 nm. However, we decided that for easier estimation we would use the middle of the range (500nm) and use that as the wavelength to calculate power.
If I counted right, I'm asking for an equation that is a function of concentration and wavelength :P.
Hope that is enough information for y'all to help me out. Even a base set of equations would be nice so I could at least attempt to derive something from them. Any help is greatly appreciated.
Love,
a lowly biologist