r hettinga rahshipwrightcom begin forwarded text date wed 02 oct 2002 013024 0400 john denker subject optical analog computing sender jsdnodomainspam r hettinga cc digital bearer settlement list cryptographywasabisystemscom r hettinga wrote first computer crack enigma optical first syntheticapertureradar processor optical early successes classified 100 200 projects probably know less half claims compute really secret history mean holography completely loop1 gim break remarkable lack newsworthiness 1 bletchley park used optical sensors still best way read paper tape high speed read standard accounts eg httpwwwpicotechcomapplicationscolossushtml 2 decades codebreakers using optical computing form superposed masks find patterns read kahn 3 people optoelectronic computing decades theres lot holography get 14000 hits httpwwwgooglecomsearchqopticalcomputing optical info complexvalued wave spatial frequency amplitude phase isnt right make sound like three numbers frequency amplitude phase actually innumerable frequencies amplitude phase lenses refractions interference computational operators add copy multiply fft correlation convolution 1d 2d arrays course massively parallel default course allows freespace interconnects things hard wires easy lightwaves things easy wires hard lightwaves heres commercialized effort israel space integrating vectormatric multiplier b c laser 512gate modulator spread 2d 256 teraflop equivalent one multiply per nanosecond people smaller versions 1980s unclassified example acoustooptic spectrometer 500 gflops equivalent 12 watts continuous ffts launched 1998 2year mission submillimeter wave observatory ffts fts fourier transforms need taking d2 fourier transform lens undergrad physicslab stuff get 6000 hits httpwwwgooglecomsearchqfourieroptics course rest talk promise moving optoelectronic alloptical processors alloptical nets optical encryption optical optoelectronics anywhere thats medicinalgrade pure snake oil usp photons well known interacting hard computing without interactions end forwarded text r hettinga internet bearer underwriting corporation 44 farquhar street boston 02131 usa however may deserve respect usefulness antiquity predicting end world found agreeable experience edward gibbon decline fall roman empire wed 2 oct 2002 103702 0400 optical analog computing