Specular Reflection from a Reflection Diffraction Grating

  1. I understand that a laser beam shining onto a diffraction grating produces a 0th order, 1st order etc... diffracted beam. My question is: What is the wavelength of the specular reflection [0th order beam] off the grating in regards to the wavelength of the incident beam?
  2. jcsd
  3. the "zeroth order" is just like an ordinary mirror - thus if it in not moving, there is no change in wavelength, and no dispersion, and for this reason it is sometimes called the "white light order"
Know someone interested in this topic? Share this thead via email, Google+, Twitter, or Facebook

Have something to add?