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REVERSIBLE RECORDING MEDIUM BASED ON OPTICAL STORAGE OF INFORMATION, METHOD OF REVERSIBLE RECORDING ON SUCH A MEDIUM
REVERSIBLE RECORDING MEDIUM BASED ON OPTICAL STORAGE OF INFORMATION, METHOD OF REVERSIBLE RECORDING ON SUCH A MEDIUM
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机译:基于信息光学存储的可逆记录介质,此类介质的可逆记录方法
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摘要
A reversible recording medium based on optical storage of at least one item of information within a support material, includes at least one layer of support material having: base molecules able to take, in a local zone, a first collective state of molecules able to generate a first signal of second harmonic characteristic of this first collective state of molecules when excited by electromagnetic reading radiation; the base molecules having the first collective state of molecules able to transform, at least in part, into transformed molecules so as to pass to a second collective state of molecules when excited by electromagnetic writing radiation, the molecules having the second collective state of molecules able to generate a second signal of second harmonic characteristic of this second collective state of molecules when excited by the electromagnetic reading radiation. The molecules exhibit a molecular structure based on a coumarin skeleton of Formula (I).
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