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  • Laser Diffraction
    The technique of laser diffraction relies on the fact that particles passing through a laser beam scatter light at an angle that is inversely proportional to their size (small particles scatter light at high angles whereas large particles scatter light at low angles). It is therefore possible
  • Low Angle Light Scattering (LALLS) and Laser Diffraction
    Low angle light scattering (LALLS) or laser diffraction is a measurement technique for particle size analyzers and particle count analyzers. LALLS offers a wide dynamic range and is the preferred standard in many industries that require stringent characterization and quality control. Often, low
  • Method Development for Laser Diffraction Particle Size Analysis
    for pulmonary delivery. During recent decades, the unique attributes of laser-diffraction analysis have positioned it as the particle-sizing technique of choice for the resulting spectrum of pharmaceutical applications. Fast, nondestructive and suitable for a broad size range (0.1 to 3000 µm), laser
  • Fivefactors to Consider When Choosing a Laser Diffraction Particle Size Analyzer (.pdf)
    Measuring particle size is an indispensable step in understanding a material's physical and chemical properties. Of the many particle sizing methods on the market, laser diffraction is one of the most popular because it's a fast, nondestructive technique that can analyze wet and dry samples
  • Choosing the Most Suitable Theory in Laser Diffraction Mie or Fraunhofer? (.pdf)
    Particle size analysis is based on the inversion of a diffusion matrix, the resolution of which is based on theories stemming from the equations of Maxwell. The Fraunhofer approximation and the Mie theory enable particle size distributions between several tens of nanometres and several thousands of
  • Laser particle size measuring instruments for the determination of particle size distributions
    Laser diffraction - for quick and dependable determination of the particle size. Areas of application cover practically all branches of industry. For example, laser diffraction can be found in the receiving, but also in the pre-delivery inspection of base materials, in which their particle size
  • Laser Tuning with Diffraction Gratings
    Light incident on a diffraction grating is dispersed away from the grating surface at an angle which depends on the wavelength, so a grating can be used to select a narrow spectral band from a much wider band. There are two main methods for selecting a narrow spectral band of light, Littrow
  • Laser Beam Expander Theory
    Perfect Gaussian Laser beams are often characterized by. a parameter known as beam divergence. Divergence is the. angular spreading of light waves as they propagate through. space. Even a perfect unaberrated ray of light will experience. some beam divergence due to diffraction effects. Diffraction
  • Correction Methods for Semiconductor Laser Diodes
    A laser diode naturally produces a beam that is divergent, elliptical, and astigmatic. A variety of optical procedures are available to correct for these deficiencies, procedures that enable a laser diode module to produce a circular, diffraction-limited beam with very low divergence. * We can

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