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Variation of red laser pointer wavelength with temperature

› Forums › Spectroscopy › LASER experiments and spectral calibration › Variation of red laser pointer wavelength with temperature

17 November 2019 at 1:59 pm #581608
Hugh Allen
Participant

Hi Derek / Steve,

A few years ago I used my Alpy 600 to look at the variation of wavelength of my red laser pointer with temperature, using my fridge/freezer and kitchen oven with a mercury thermometer. The results are attached, giving a variation of 0.19nm/deg

Cheers

Hugh