Optogenetics Irradiance Calculator

Calculate power needed for opsin activation.

Type of brain matter:
  • Grey matter eg. cortex
  • Mixed eg. thalamus
  • White matter eg. brainstem
  • Fibre core diameter (um):
    Power (mW):

    Irradiance (mW/mm^2)

    Depth (mm) NA = 0.22 NA = 0.39 NA = 0.50 NA = 0.66
    0.0
    0.1
    0.2
    0.3
    0.4
    0.5
    0.75
    1.0
    1.5
    2.0
    3.0

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