Miscellaneous

  • Study of glycerol diffusion in water by refraction of a laser beam at the interface.
  • Photoelectric effect: measurement of the fundamental constant h/e using a vacuum cell and a Hg spectral lamp.
  • Planck's Law: measure h/kB by studying the spectral emission of an incandescent lamp at different supply voltages and filament temperatures.
  • Characterization of an ultrasonic acoustic field in a fluid: using a high-frequency ultrasonic generator, an acoustic wave is created in a fluid (water, ethanol), which is then detected by various optical methods: shadow projection (refraction : the modulation of the refractive index created by a stationary ultrasonic wave causes zones of light accumulation), diffraction (visualization of the diffraction of a laser beam by a quasi-sinusoidal phase grating), or strioscopy(spatial filtering by diffraction: appearance of a phase contrast by filtering the Fourier 0 component). Wavelength measurement. Calculation of acoustic wave propagation velocity in a fluid. Application to the principle of the acousto-optic modulator (see Optics and acoustics leaflet). This experiment may also be of interest to the MAP platform.
  • Material characterization by ellipsometry.
Published on March 13, 2017
Updated on March 13, 2017