Orléans (France), May 29, 2019 - CILAS will develop the two large deformable mirrors for the Thirty Meter Telescope (TMT).
CILAS will manufacture the two DMs optically conjugated to the ground («DM 0», 3 125 actuators in a 63x63 array with ~5mm inter-actuator pitch) and to 11.8 km («DM 11», 4 548 actuators in a 76x76 array with ~5mm inter-actuator pitch). The DMs will be integrated into the TMT first light, laser guide star, multi-conjugate adaptive optics system and used to correct wavefront deformations generated by atmospheric turbulence.
Located in Hawaii, TMT’s telescope observatory will enable discoveries in the fields of astronomy, astrophysics, and cosmology. TMT’s science agenda shall cover all space and time domains from nearby comets & asteroids to exoplanets, distant galaxies, and the very first sources of light in the universe. With a 30 meter primary mirror, TMT is at the vanguard of a new generation of large telescopes called «Extremely Large Telescopes» (“ELTs”).
This contract is the result of a long-standing collaboration between CILAS and TMT (started in 2004) to develop DM technology for very large telescopes. For this purpose, CILAS adapted and improved its SAM (Stack Array Mirror) technology, initially developed in the 1980’s
This image demonstrates the excellent capability of CILAS' deformable mirror (DM) to control the wavefront of the light that will feed TMT instruments after correction by TMT’s Adaptive Optics system NFIRAOS.