Channelled spectrum liquid refractometer

Article English OPEN
Taplin, S. ; Podoleanu, A.G. ; Webb, David J. ; Jackson, David A. (1993)
  • Subject:
    arxiv: Physics::Optics

We describe an experimental demonstration of a novel technique for liquid refractometry. A channeled spectrum is produced from an optical beam generated by a diode laser operating below threshold by intercepting half of the beam with a liquid cell. The spectrum is analyzed using a grating and a linear CCD array and provides information on the refractive index of the liquid. The experimental results show that accuracies of better than 0.3% in the index may be obtained with the present method.
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