A new add-on module for Ocean Optics’ (Dunedin, FL) SpectraSuite Spectrometer Operating Software allows users of the company’s miniature spectrometers and Jaz optical sensing systems to calculate Photosynthetically Active Radiation (PAR), an important parameter for evaluating the effect of light on plant growth. SpectraSuite-PAR uses the absolute irradiance spectrum (captured by the spectrometer) of the light incident on plants and other samples and conveniently converts the irradiance values from μW/cm2 (microwatts per square centimeter) to μmol/m2/s (micromoles per square meter per second), the measurement unit more commonly used for PAR analysis. Photonics West Booth #1007

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