DIY Single Photon Generator
Photons usually come in packs. Single Photons are cool. Where to get them?
Seeing low light (scotopic vision):
https://en.wikipedia.org/wiki/Scotopic_vision
Of cones and rods:
http://math.ucr.edu/home/baez/physics/Quantum/see_a_photon.html
Neuroscience: Humans can detect single photonsAdd:
http://www.natureasia.com/en/research/highlight/10786
https://en.wikipedia.org/wiki/Scotopic_vision
Luminometer:
Got a Lumat, LB 9501 Single Tube Luminometer from berthold.com
Despite the thing dating back to 1994 it is fully working and can detect down to below 1000 photons per second.
Here you find the Manual.
The "Relative Light Unit" (RLU) represents 1/10 of the photons detected by the photon multiplier. And
RLU factor
390nm - 620nm
Quantum-Efficiency of typ 24% at 420nm
Literature:
https://www.amazon.com/Single-photon-Devices-Applications-Charles-Santori/dp/352740807X
https://www.lap-publishing.com/catalog/details//store/gb/book/978-3-659-50846-2/towards-single-photon-sources
http://www.photonicsolutions.co.uk/company.php?comp=5765
http://www.micro-photon-devices.com/Products/Photon-Counters/InGaAs-InP
Papers:
http://www.sciencedirect.com/science/article/pii/S0168900214014041
