protein memory

[Pallavi B]

Hi,

In the reading process of protein memory, first green laser is turned on to select a page and then red laser to read particular byte or whatever.
But my doubt is the molecules which are already in Q state doesnt absorb red light and it is imaged on a detector. the molecule which are in O state absorbs light. So how does we distiguish between 0 and 1 on the detector?

can anyone pls mail me the clear picture of read and write process .

Thanks in advance






Regards,
Pallavi