Papers
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Total Citations
7
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About
Dr. Sang-Uk Cheon is a precision optomechanical engineer whose work bridges astronomical instrumentation and advanced kinematic calibration. His primary research focuses on the development and alignment of large telescope optics, particularly for next-generation ground-based observatories. Dr. Cheon’s most cited contribution is a 2013 study introducing a kinematic calibration method for the 3-degree-of-freedom secondary mirror of the Giant Magellan Telescope (GMT). This work, which has garnered 7 citations, addresses a critical challenge in adaptive optics: ensuring sub-micron positioning accuracy for the telescope’s deformable secondary mirror. By applying a least-squares algorithm to model and correct geometric errors, Cheon’s method enhances the mirror’s ability to maintain precise alignment under varying gravitational and thermal loads. This achievement is vital for the GMT’s goal of achieving diffraction-limited imaging. Beyond this flagship project, Dr. Cheon’s expertise in optomechanical design and metrology has contributed to the development of precision positioning systems for other large telescopes. His work exemplifies the meticulous engineering required to push the boundaries of observational astronomy, making him a key figure in the realization of the next generation of giant telescopes.
Research Focus
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Top Papers
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