Photorearrangement mechanism of 1-nitro-naphthaldehyde and application to three-dimensional optical storage devices
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abstract
The photorearrangement of 1 -nitro-2-naphthaldehyde to the nitroso acid has been studied by means of time-resolved picosecond and nanosecond spectroscopy. Based on the experimental data we propose that the photoreaction proceeds via both the 1n* excited singlet state and the low lying 3* triplet state. 1-Nitro-2-naphthaldehyde is the critical component used to generate a new memory material, which has been successfully utilized by us in two-photon three-dimensional optical storage devices. 1998 Elsevier Science S.A.