Influence of low temperature on the surface deformation of deformable mirrors

You Juncheng^{1, 2, 3}, Guan Chunlin^{1, 2, †}, Zhou Hong^{1, 2}

(color online) Simulated surface deformation of K4 DM in 120 mm diameter: (a) 10 °C PV = 0.008 μm; (b) 0 °C PV = 0.011 μm; (c) −10 °C PV = 0.054 μm; and (d) −20 °C PV = 0.129 μm.