Patent ID: 6614730
Filing Date: 2003-09-02
Classification: G11B

Abstract:
A parallel signal transfer system (PSTS) for writing a surface-enhanced Raman optical data storage (SERODS) medium comprising:a pulsed laser providing optical light pulses to the SERODS medium, said laser adapted to produce two-dimensional surface-enhanced Raman scattering (SERS) microspots in the SERODS medium; a beam splitter for splitting the optical light pulses into first and second pulsed beams; a cylindrical mirror system positioned in the first pulsed beam path, said cylindrical mirror system adapted for spreading the first pulsed beam into a 2-D excitation plane; an optical delay positioned in the second pulsed beam path, said optical delay adapted for producing pulse overlap with the first pulsed beam for two-photon excitation in the SERODS medium; a two-dimensional detector receiving a two-dimensional SERS optical light image signal of said microspots from the SERODS medium, said two-dimensional detector adapted for producing a 2-D image of the 2-D SERS optical light image signal; and a holographic notch filter positioned between the SERODS medium and said two-dimensional detector, said holographic notch filter rejecting the Raleigh scatter from the two-dimensional SERS optical light image signal.