Abstract
The principle of adaptive optics is straightforward and is depicted in Fig. 10.1 in the context of astronomical imaging. Because of atmospheric turbulence, the wavefront from a pointlike object is continuously distorted. The purpose of the adaptive optics (AO) system is to remove this distortion and provide diffraction-limited imaging if possible. This is achieved by sensing the distortion using a wavefront sensor and compensating for it using a deformable mirror. The whole system operates in closed loop with the aid of a suitable control system. These are the three key elements of an adaptive optics system. The principle of operation is simple: the control system drives the deformable mirror so that the error in the wavefront is minimised. The “devil lies in the detail” of every individual part of the system and of the way they interact with each other and with the incoming dynamically distorted wave.
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Dainty, C. (2003). Adaptive Optics. In: Török, P., Kao, FJ. (eds) Optical Imaging and Microscopy. Springer Series in Optical Sciences, vol 87. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-46022-0_10
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DOI: https://doi.org/10.1007/978-3-540-46022-0_10
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