From Event: SPIE Optical Engineering + Applications, 2017
We describe a paradigm shift for astronomical observatories that would replace circular apertures with rotating synthetic apertures. Rotating Synthetic Aperture (RSA) observatories can enable high value science measurements for the lowest mass to orbit, have superior performance relative to all sparse apertures, can provide resolution of 20m to 30m apertures having the collecting area of 8m to 12m telescopes with much less mass, risk, schedule, and cost. RSA is based on current, or near term technology and can be launched on a single, current launch vehicle to L2. Much larger apertures are possible using the NASA Space Launch System.
Gerard L. Rafanelli, Christopher M Cosner, Susan B. Spencer, Douglas Wolfe, Arthur Newman, Ronald Polidan, and Supriya Chakrabarti, "Revolutionary astrophysics using an incoherent synthetic optical aperture," Proc. SPIE 10398, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VIII, 103980P (Presented at SPIE Optical Engineering + Applications: August 07, 2017; Published: 5 September 2017); https://doi.org/10.1117/12.2272782.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon