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Microscopy jdcUser 2018-01-04T15:23:29+00:00
  • Why LCoS could solve bottleneck of current microscopy technology?
  • At present, optical microscope technologies are progressing rapidly and diversely. The main directions of development are to enhance resolution, both spatial and temporal and to improve the image contrast.
    In LCOS, applying different voltages leads to different degrees of twist of the liquid crystal molecules, leading to phase retardation when light passes through the LC layer. This effect makes possible the implementation of both amplitude modulation and phase modulation, so LCOS may be regarded as a spatial light modulator (SLM).
    When an LCOS panel is integrated into an optical microscope system, it could be placed on the illumination path or on the image forming path. For the first case, when the SLM is placed in the illumination path sophisticated illumination patterns or dynamically steerable illumination sources may be produced. The result is enhanced resolution. For the second case, when the SLM is in the image forming path, Fourier filtering technology is introduced into the system, thus improving the image contrast. In addition, LCOS also has the ability to adaptively correct the aberrations introduced by the optical components of the system.
    In brief, LCOS provides a program-controllable liquid crystal array well suited for optical microscope use. LCoS can be controlled to dynamically change the amplitude or the phase of light, to improve image contrast, and gives the obvious advantage, “Flexibility”, to the system implementer.