Frank DeFreitas Holography | Allentown, PA | Phone: 610-770-0341 World's Smallest Mona LisaPublishing Notes Started: 28 December 2012 Updated: 7 March 2013 Project Statement: As of 1 March, 2013, I have made what I believe may be the world's smallest recording of the famous Mona Lisa. It is recorded as a micro laser hologram, and measures approx. 100 microns in diameter, or the width of a human hair. Since it is recorded using holography, I am calling it the "Holo Lisa". The detail is in the nanometer scale. It is recorded onto a proprietary photopolymer material manufactured primarily for holographic applications. The information contained within the hologram is recorded at the molecular level. The Mona Lisa hologram was recorded in my private laser and holography studio & laboratory in Allentown, Pennsylvania. The photo at the top of this page shows the image being reconstructed with laser light in my lab. Until I can get an accurate measurement of the size of the image area, I will officially say that it is "less than one millimeter" in diameter. But my best guesstimate at this time is in the 100-micron range. This would make this hologram the smallest recording of the Mona Lisa in the world today. There are various applications to this technology, such as holographic optical data storage and retrieval. One day, information will travel around as photons of light (rather than the electrons of today), and the information will be stored in holograms. This is a very advanced field of science, but can also be done inexpensively and simply (on a modest scale) by students and educators. Sincerely, Frank DeFreitas 
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