- Sep 20, 2013
Of course I'm aware of that. I plan on changing the overall spectrum which at the moment is 340nm to 889nm. That actually gives me about .25nm per pixel, so it is close enough to get the ~.50nm change correct.Are you aware your device only has 2048 pixels to cover the spectrum? Depending on your grating, That's probably less than 3 pixels per nm. That second decimal is an artifact of the polynomial calibration regression, and should be rounded off. The average beam position would only need to move one pixel over to account for a drift of 0.5nm. You don't think it's possible ANY thermal effects internal to your device could account for a 1-pixel shift?