Kirlian effect was named after Kirlian family from USSR that has devoted many years to the research in the area of bioelectrography in the second half of the XXth century. Semyon and Valentina Kirlian has found the effect of light emission around human hands when placed in the high voltage high frequency electromagnetic field.
An additional point
Unfortunately many people has got it wrong and started connecting the Kirlian effect with Aura and Energy field. In fact these terms are not connected, or connected very slightly and indirectly. In order to understand that let's define each of these three terms separately.
Kirlian photography (https://en.wikipedia.org/wiki/Kirlian_photography) is based on Kirlian effect or the phenomenon of electrical coronal discharges.
Applying high voltage high frequency electromagnetic field to a conductive material attracts the free electrons from the surface of the conductive material. When these electrons fly out from the surface of the material they collide with the air molecules and create the corona discharge (light emission). If you photograph this corona discharge you will get Kirlian photo. Word “material” here can mean absolutely any conductive substance: it can be liquid, metal, living being. Human hands are not an exception from this rule – they are also conductive – that is why they also emit electrons under the influence of high voltage high frequency EMF.
We can make two conclusions from this definition:
- Kirlian photo is an image of the light emission by the air (gas) molecules. It is not light emitted from the “material”!
- Free electrons can be extracted from any conductive material, not only living ones.