The term biophotonics denotes a combination of biology and photonics, with photonics being the science of direct manipulation of photons, quantum units of light. Photonics is related to electronics in that it is believed that photons will play a similar central role in future information technology as electrons do today.
Biophotonics has therefore become the established general term for all techniques that deal with the relation of biological material and photons. This refers to emission, detection, absorption, reflection, modification, and creation of radiation from living organisms and organic material. Areas of application are life science, medicine, agriculture, and environmental science.
That is what you get when you read new words in an article and you go to Wiki. Then you follow all the other words and get lost for an hour and still can't get the brain to accept biophotonics as something it's ever going to understand. It has applications in microscopy.
Now ask me about acoustic levitation. I've almost got that one except how it works but it sounds great, like the Rolling Stones on a high.