Interferometric spherical surface testing with unknown phase shifts
نویسندگان
چکیده
منابع مشابه
Adaptive interferometric null testing for unknown freeform optics metrology.
We report an adaptive interferometric null testing method for overcoming the dynamic range limitations of conventional null testing approaches during unknown freeform optics metrology or optics manufacturing processes that require not-yet-completed surface measurements to guide the next fabrication process. In the presented adaptive method, a deformable mirror functions as an adaptable null com...
متن کاملExploring Novel Methods of Interferometric Detection of Ultrasmall Phase Shifts
We propose a new method to detect ultrasmall nonreciprocal phase shifts in solids based on the Sagnac interferometer combined with internal optical modulation of the absorption. The Sagnac interferometer with heterodyne balanced detection is expected to enable shot-noise-limited detection of phase shift as a result of its insensitivity to frequency and amplitude fluctuations of the laser. The l...
متن کاملAn advanced phase retrieval algorithm in N-step phase-shifting interferometry with unknown phase shifts
In phase-shifting interferometry with unknown phase shifts, a normalization and orthogonalization phase-shifting algorithm (NOPSA) is proposed to achieve phase retrieval. The background of interferogram is eliminated through using the orthogonality of complex sinusoidal function; and the influence of phase shifts deviation on accuracy of phase retrieval is avoided through both normalization and...
متن کاملPhase shifts due to atom-surface interaction
Several atom optics experiments have studied how atom-surface interactions affect the propagation of atom waves. However, none of these experiments directly measure the phase shift of atom waves due to interaction with a surface. For example, experiments with atoms transmitted through a cavity [1, 2], atoms diffracted from a material grating [3–6], atoms reflecting from surfaces [7– 10], atoms ...
متن کاملSpherical surface models with directors
A triangulated spherical surface model is numerically studied, and it is shown that the model undergoes phase transitions between the smooth phase and the collapsed phase. The model is defined by using a director field, which is assumed to have an interaction with a normal of the surface. The interaction between the directors and the surface maintains the surface shape. The director field is no...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2015
ISSN: 1094-4087
DOI: 10.1364/oe.23.014360