Over the next two decades, unprecedented astronomy missions could be enabled by space
telescopes larger than the James Webb Space Telescope. Commercially, large aperture …

We present a new type of phase-shifting interferometer, which utilizes a polarizing prism to
form quadrature phase-shifted fringe patterns onto a single imaging sensor. By changing the …

ZERODUR® glass ceramic from SCHOTT is known for its very low thermal expansion
coefficient (CTE) at room temperature and its excellent CTE homogeneity. It is widely used …

We present a new high-speed phase distribution measurement, in which a polarization
imaging camera is applied to a quadrature phase-shifting interferometer. The polarization …

Abstract Space-based interferometric missions such as SPIRIT, SPECS, TPF, and LISA will
take measurements of the universe with unprecedented results. To do this, these missions …

A novel alloy, exhibiting extremely low thermal expansion, high temporal stability and
superior Young's modulus, has been developed based on the super invar (Fe 64 Ni 31 Co …

Imaging systems larger than the James Webb Space Telescope will enable unprecedented
astronomy in the future. Larger aperture space-based imagers will also support next …

We propose a high-speed phase measurement using a phase calculation algorithm in a
quadrature phase-shifting interferometer (QPI), which is applied to tilted fringes. Although …

In this work, the optical evaluation of a mechanism for space applications under vacuum and
temperature controlled conditions at the facilities of the Space Instrumentation Laboratory …

In this work, the optical measurement system employed to evaluate the performance of a 6
degrees of freedom (dof) positioning mechanism under cryogenic conditions is explored …