France researches 3D optical storage technology

By using lasers to perform molecular coupling and decomposition, scientists have invented the 3D optical data storage technology.

Image for illustrative purposes. (Internet source).

The introduction of this new technology allows us to simply use the second harmonic assisted-image technique (SHG) to read the relevant data.

To demonstrate the feasibility of this new technology, scientists have demonstrated a 700nm laser beam on coumarin.

The goal is to generate a photodimerization reaction between the coumarin molecules, thereby converting the coumarin compound to a dimer.

Experimental results prove that lines and points can be recorded through the adjustment of light.

The recorded data can be read through the second harmonic assist picture technique.

In the process of reading data generated by second-harmonic harmonics not absorbed by the conjugate coumarin molecule, scientists were unable to observe the data points lost. . This can help avoid the possibility of information being deleted due to future chemical reactions.

Eventually the scientists proved that the data could be deleted and rewritten in the same area.

According to the scientists, the method of storing optical data on will become a method of data storage with large capacity and high efficiency.

Moreover, since the reading process is only performed by second harmonic assist picture technique, it is therefore suitable for storing sensitive areas.