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Technical data Determination of the Laser Wavelength Using Multiple-Slit Diffraction Article no: P1391700 Principle Laser light is diffracted at a multiple slit. Using the measured minima of the intensity profile, the laser wavelength is calculated from the known slit width and the known distance to the sensor. Tasks Set up the experiment and measure the distance between the slit and the sensor. Record the intensity profile of the diffraction pattern. Calculate the laser wavelength. Learning objectives Students investigate diffraction at a multiple slit and experimentally determine the wavelength of the laser. Benefits Clear investigation of a central phenomenon in wave optics Development of experimental skills and confident handling of measurement data Comparison of several slit widths in a compact setup

Determination of the Laser Wavelength Using Multiple-Slit Diffraction