Photon Wavenumber Using Wavelength
A photon is an elementary particle, the quantum of the electromagnetic field including electromagnetic radiation (such as light) and the force carrier for the electromagnetic force.
The wavenumber equals 2\[Pi] divided by the wavelength.
Formula
![QuantityVariable["k", "Wavenumber"] == (2*Pi)/QuantityVariable["λ", "Wavelength"]](https://www.wolframcloud.com/objects/resourcesystem/marketplacestorage/resources/6dc/6dcb7f82-22b0-4120-a047-4e697835b0fd/Webpage/FormulaImage.png "Copy to Clipboard")
| symbol | description | physical quantity |
|---|---|---|
| k | wavenumber | "Wavenumber" |
| λ | wavelength | "Wavelength" |
Forms
Examples
Get the resource:
| In[1]:= | ![ResourceObject["Photon Wavenumber Using Wavelength"]](images/6dc/6dcb7f82-22b0-4120-a047-4e697835b0fd-io-1-i.en.gif){kind=small} |
| Out[1]= |  |
Get the formula:
| In[2]:= | ![FormulaData[ResourceObject["Photon Wavenumber Using Wavelength"]]](images/6dc/6dcb7f82-22b0-4120-a047-4e697835b0fd-io-2-i.en.gif){kind=small} |
| Out[2]= |  |
Use some values:
| In[3]:= | ![FormulaData[
ResourceObject[
"Photon Wavenumber Using Wavelength"], {QuantityVariable[
"k","Wavenumber"] -> Quantity[5.606`, 1/("Centimeters")]}]](images/6dc/6dcb7f82-22b0-4120-a047-4e697835b0fd-io-3-i.en.gif){kind=small} |
| Out[3]= |  |