Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
110 words
A method of information recording comprising the steps of providing a film of a mixture on a substrate, said mixture comprising a matrix material and an incident energy absorbing material which fractionates and/or homogenizes under treatment with sufficient energy, said mixture having a physical state after fractionation and/or homogenization which will undergo further physical state transformation only under treatment with additional energy, treating a spot on said film with sufficient energy to effect fractionation and/or homogenization of the film resulting in homogeneous and inhomogeneous regions whereby the physical changes caused by the fractionation and/or homogenization on said treated spot can be detected by the resulting changes in its physical properties.
Claim 2
Independent Claim
110 words
A method of information recording comprising the steps of providing a film of a mixture on a substrate, said mixture comprising a matrix material and an incident energy absorbing material which fractionates and/or homogenizes under treatment with sufficient energy, said mixture having a physical state after fractionation and/or homogenization which will undergo further physical state transformation only under treatment with additional energy, treating a spot on said film with sufficient energy to effect fractionation and/or homogenization of the film resulting in homogeneous and inhomogeneous regions whereby the physical changes caused by the fractionation and/or homogenization on said treated spot can be detected by the resulting changes in its physical properties.
Claim 3
Dependent Claim
15 words
A method as described in claim 1 whereby the spot is irradiated with a laser.
Claim 4
Dependent Claim
32 words
A method as described in claim 2 whereby the laser irradiation step is done with a short duration laser pulse of 1 microsecond or less on a stationary spot on said film.
Claim 5
Dependent Claim
31 words
A method as described in claim 2 whereby the laser irradiation step is done with a laser pulse duration of greater than 1 microsecond on a moving spot on said film.
Claim 6
Dependent Claim
24 words
A method as described in claim 2 including the step of heating said film before it is irradiated or while it is being irradiated.
Claim 7
Dependent Claim
12 words
A method as described in claim 2 including a second irradiation step.
Claim 8
Dependent Claim
16 words
A method as described in claim 2 including a third irradiation step to introduce new data.
Claim 9
Dependent Claim
17 words
A method as described in claim 1 whereby said film is of a homogeneous mixture which fractionates.
Claim 10
Dependent Claim
21 words
A method as described in claim 8 whereby said homogeneous mixture is obtained by treating a film of a inhomogeneous mixture.
Claim 11
Dependent Claim
17 words
A method as described in claim 1 whereby said film is of a inhomogeneous mixture which homogenizes.
Claim 12
Dependent Claim
70 words
A method as described in claim 1 whereby the matrix materials are SiO 2 , Te0 2 , Ge0 2 , Mo0 2 , Sb203, Bi 2 0 3 , In 2 O 3 , TbO, (CF 4 ) n , Se and mixtures thereof and the incident energy absorbing materials are Au, Ag, Pt, Pd, Ti, Cr, Cu, Te, Ge, Mn, Sb, Bi, Sn, In, Pb and mixtures thereof.
Claim 13
Dependent Claim
58 words
An optical recording structure comprising a film of a mixture on a substrate, said mixture comprising a matrix material and an incident energy absorbing material, said mixture fractionates and/or homogenizes under treatment with sufficient energy, said mixture having a physical state after fractionation and/or homogenization which will undergo further physical state transformation only under treatment with additional energy.
Claim 14
Dependent Claim
58 words
An optical recording structure comprising a film of a mixture on a substrate, said mixture comprising a matrix material and an incident energy absorbing material, said mixture fractionates and/or homogenizes under treatment with sufficient energy, said mixture having a physical state after fractionation and/or homogenization which will undergo further physical state transformation only under treatment with additional energy.