Request InfoSpectral Evolution Inc.LAWRENCE, Mass., April 27, 2017 — The PSR+ spectroradiometer with DARWin SP data acquisition software from Spectral Evolution Inc. provide researchers with data on the ability of vegetation to efficiently use sunlight for photosynthesis. The Photochemical Reflectance Vegetation Index and Red/Green Vegetation Index are two of the 19 vegetation indices offered with DARWin SP Data Acquisition software and the PSR+ field spectroradiometer. PRI uses the wavelengths of light from 400 to 700 nm and has a measurement range of -1 to 1 with healthy vegetation falling between the values of −0.2 to 0.2 in the PRI index....See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 12/13/2022InGaAs Photodiode DetectorsMarktech Optoelectronics' lineup of advanced InGaAs photodiode detectors consists of several detector families or series based on their spectral sensitivity ranges. 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