I bought a lightcrafter DMD with which I am experimenting. I have two technical questions.
I am very interested in using this device for interferometric techniques for medical imaging, but am concerned about the air resistance fluctuations with the mirrors which would destroy good phase coherence. Recently it has been shown that operation within a rough vacuum (5 torr) can clean up these phase instabilities for certain micromirror devices (reference below). Have your laboratories tried this method?, and would it be safe to use on the lightcrafter without adjusting the voltages controlling the device? Is there any way to get more information about how to control the micromirrors directly using FPGA or is this all still proprietary?
My second question was the maximum number of binary patterns I can input into the device and what is the best or most convenient interface in which it could be accomplished from a PC. I believe that the maximum binary pattern rate 4000 Hz, but the device itself only stores 96 patterns. Which of the input devices on the lightcrafter (if any) would allow an pattern input of 4000 per second (USB, other?) If this requires more in depth collaboration, I can pay for consultation fees as well. Thanks sincerely for any help you could offer, Tim Parrett, MD
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